Circuit Rhythm has eight separate sample tracks, which correspond to the eight buttons 1 to 8 above the main playing grid. Each of the 16 pads of the lower two rows triggers a different sample: there are eight pages of these (each with 16 samples), which can be selected with the ▼ and ▲ buttons
. Note that when you are scrolling through the sample pages, the page you are currently viewing will be indicated by one of the 1 to 8 buttons momentarily illuminating bright white; i.e., if you scroll to page 5, the 5 button will briefly light. The intensity of the ▼ and ▲ buttons’ illumination also indicate the page currently in use.
Each track may be selected and programmed independently using the track buttons 1 to 8. The tracks use colour coding for the sample pads and elsewhere for ease of identification (see Getting started).
The default sample page allocation is:
Track 1: |
Page 1, slot 1 (Kick 1) |
---|---|
Track 2: |
Page 1, slot 3 (Snare 1) |
Track 3: |
Page 1, slot 5 (Closed hi-hat 1) |
Track 4: |
Page 1, slot 7 (Open hi-hat 1) |
Track 5: |
Page 1, slot 9 (Clap) |
Track 6: |
Page 1, slot 11 (Tom) |
Track 7: |
Page 1, slot 13 (Synth pluck) |
Track 8: |
Page 1, slot 15 (Synth lead) |
Each of the first six pages represents a kit: slots 1 and 2 are kick drums, 3 and 4 are snares, 5 and 6 are closed hi hats, 7 and 8 are open hi hats, 9 through 12 tend to be additional percussion, and 13 through 16 are melodic sounds. Page 7 provides a range of 16 melodic samples while Page 8 has 12 further melodic loops plus four drum breaks (slots 13 to 16).
Sample View is the default view for each track. Pressing a track button will take you directly to that track’s Sample View. This view is identical for each track, apart from the colour coding. The example below illustrates Track 1.
You can audition the samples by pressing the sample pads. To change the active sample, give a different sample pad a quick tap: a longer press will play the sample but leave the previous sample assigned as the active one.
To assign the active sample to Pattern steps, tap the Pattern step pads that correspond to where you want the samples to be triggered. The steps with hits will illuminate bright blue. The step pads are toggles – to delete the sample from a step, tap the step pad again.
To change the active sample, tap another sample pad. This will affect sequencer playback – bright blue steps will always trigger the track’s currently active sample. Pressing a sample pad (as opposed to tapping) will not change the active sample. This behaviour is useful for Sample Flipping, which you can read more about on Sample flip (see also below).
Sample triggers programmed by tapping in steps as described above will be assigned to the Pattern with default Velocity, Gate, Micro Step and Probability values: these parameters can then be edited.
Sample triggers may also be live-recorded to the sequencer. First, enable Record Mode by pressing the Rec button so that it lights bright red •. Now press Play
and hit some sample pads – these hits will be recorded to steps. Note that these steps will be lit lilac – this indicates that the steps have an assigned sample. These steps will ignore the track’s currently active sample, instead triggering the sample you just used. This behaviour is called Sample Flip, which you can read more about in Sample flip
Although each track on Circuit Rhythm is monophonic, it is possible to assign different samples to individual steps on a single track. This is useful for creating interesting and intricate drum beats. The action of assigning different samples per-step is called Sample Flip.
Steps may be assigned a sample in two different ways:
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The first is via live recording in Sample View. To do this, first enable Record Mode by pressing the Rec button so that it lights bright red. Now press Play
and hit some sample pads – these hits will be recorded to steps. Note that these steps will be lit lilac – this indicates that Sample Flip has been used to assign a different sample. These steps will ignore the track’s currently active sample, instead playing back their assigned sample.
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The second is via manual assignment. Press and hold a sample pad (it will turn red after a moment) and then press the steps where you want to place the sample. The steps will turn red until you release the sample pad, at which point they will turn lilac to indicate that they have an assigned sample. If you press and hold the sample pad again, the steps that match the assigned sample will turn red to indicate the relationship. Pressing and holding a step with an assigned sample will also light the corresponding sample pad red – this behaviour is useful when you have many steps with different assigned samples in a single pattern.
Steps that are sample flipped will be lit bright lilac, while steps that will play back the active sample will be lit bright blue.
Circuit Rhythm offers several sample playback options: these are selected in Sample Mode View. Enter Sample Mode View by pressing Shift and Sample
, or press Sample again if you are already in Sample View. All the options on Sample Mode View can be applied independently to any of the eight tracks.
The three blue pads (Pads 25 to 27) determine how the currently active sample will be played when it is triggered.
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One Shot (the default setting) – the sample plays from start to end regardless of when Note Off occurs (i.e., when the keyboard pad is released).
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Gated – the sample plays once until Note Off occurs, at which point sample playback stops (according to the envelope).
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Loop – the sample will continuously loop from start to end until the Note Off occurs.
Pad 28 – Reverse – selects the direction of sample playback. The default setting is off (lit dim pink), when sample playback behaviour will be as described above. When Reverse is selected (lit brightly), the sample will play - in the selected Sample Playback Mode – backwards, starting at its end.
Pad 29 – Choke – each track may be assigned to a single choke group. Only one track in the choke group may play back audio at a time. Press the pad to enable Choke (lit bright when active). When a sample is triggered for any track in the choke group, any other track in the choke group that is currently playing audio will be silenced, giving way to the most recently triggered track.
Pads 31 (Keyboard) and 32 (Slice) let you switch between these two modes; the mode changes the appearance of Note View (see Starting from scratch). Keyboard is the default for each track (Pad 31 is lit bright red and Pad 32 dim red).
Note View allows you to play samples either chromatically or sliced, allowing you to create bass lines, melodies, or chopped up beats with Circuit Rhythm
By default, each track’s Note View will be in Keyboard mode. In this mode, the lower two rows of Note View – selected with the Note button – are laid out to represent one octave of a chromatic keyboard. (Expanded Note View, with two octaves of keyboard, is also available.)
Playing the keyboard will trigger playback of the track’s active sample in semitone increments. Higher and lower pitches may be achieved by pressing the up and down arrows to scroll through octaves. The maximum amount a sample may be pitched up or down is three octaves. Note that this is affected by the tuning parameter. Such that if Tune is set to its maximum positive value (+1 octave), notes played on the keyboard which are higher than two octaves above middle C will play at a fixed maximum pitch. To reset the keyboard to its default position (with middle C on the bottom left pad), press both arrow buttons together.
Sample playback in Keyboard Note View may be live-recorded into patterns when sequencer playback is active by enabling Record mode. Alternatively, notes may be entered manually by tapping steps. Steps will be assigned with the currently selected note value, which is lit brightly on the keyboard. Unlike the active sample in Sample View, steps will always play the note selected at the time of assignment. To change the note assigned to a step while maintaining other step parameters (Velocity, automation, etc.), hold a note pad and press a step, or vice versa.
Using Slice Note View, you may chop up samples and play back slices, allowing you to make loops of your own.
To enable Slice Mode, enter Sample Mode View, then press the bottom right pad labelled Slice. Three pads will now be lit white on the row above, which may be used to select the number of slices that the sample will automatically be sliced into.
Selecting the left-most white pad will divide samples into 4 equal slices, the middle pad will do so with 8 slices, and the right-most pad will do so with 16 slices. The default setting is 16 slices. On resuming Note View, 4, 8 or 16 pads will be lit corresponding with your selection in Sample Mode View.
By default, each slice will start where the previous one ends, and together all slices make up the entire sample. In Slice Note View, each slice’s start and length may be adjusted, allowing slices to overlap if desired. Hold Shift while adjusting the start and length to fine-tune these values.
Note that with Slice Mode active, the full sample will play back in Sample View, allowing you to browse your samples in their entirety. Further, macros 2 and 3 will not function and will be unlit in Sample View.
Step entry in Slice Note View will behave identically to Keyboard Note View described above. Switching between Slice Note View and Keyboard Note View can often lead to happy accidents, and may be used as a performance tool.
Some samples won’t divide into 4, 8 or 16 slices, and the points at which you want to place slices may be spread unevenly across the sample. This is where Live Slice Point Recording comes in very useful.
To live-record slice points, enter Expanded Note View while in Slice Note View. The slice pads will turn gold at this point, indicating Live Slice Point Recording is primed.
Tap a slice pad to initiate Live Slice Point Recording. The selected sample will now play from the start of the sample towards the end of the sample. As the sample plays back, tap a second pad to set that pad’s start point, and the previous pad’s end point. Continue this process until you reach the end of the sample. Now return to Note View, where you’ll find that your slices’ start and end points are set to the exact moment that you recorded in Expanded Note View. To make a another attempt at live recording your slice points, enter Expanded Note View again.
Note that Live Slice Point Recording cannot be used during sequencer playback
You can adjust the pitch of the selected sample per track, so the Sample Length matches the project’s tempo.
If Beat Match is available for the sample pads 1 and 2 light pink to show options for matching the sample slower or faster.
When you first load a sample it has no Beat Match, once you apply Beat Match the pad stays bright to show if the match has been done by tuning up (left) or down (right) The brighter pad below shows the Sample has been beat matched by tuning down.
Depending on the sample length you can snap the pitch of the sample up and down to loop relative to the current tempo. If the sample is already tempo matched, the two pink pads change the sample’s original pitch up or down one octave.
The pads light a dim pink colour to show the available time stretch ranges, while pads for unavailable ranges light dim red. The pad highlighted in bright pink is the currently selected time stretch value. A sample can reach a time stretch range from half to double its original length.
The Beat Match pads are a shortcut to set the Tune value of a sample so it matches a rhythmic time division. Adjust the Tune macro pot to retune the sample and remove the Beat Match tuning.
Note
Very short or very long samples may not have any ranges available. Sometimes you can’t stretch a sample in either direction because the allowed ranges are between 4 - 128 steps (at default sync rate).
Circuit Rhythm’s macro controls provide key parameters for tweaking the sound of your samples. The parameter each macro controls is printed beneath it.
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Macro 1 - (Tune) will alter the tuning of samples on the track over a range of +/-1 octave. Tuning will change in increments of 20 cents (1/5 of a semitone). To change in increments of a semitone, hold Shift while adjusting.
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Macro 2 - (Start) will alter the start point of samples on the track, and Macro 3 (Length) will alter the length. That is, the point in the sample at which playback begins when triggered, and how much of the sample is played back from the start point. To fine-tune start or length, hold Shift to increase the resolution, and turn the corresponding Macro.
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Macro 4 - (Slope) will alter the slope that governs the sample’s volume when triggered. Turning clockwise will add an attack phase, followed by a decay phase in gated or looped playback modes: the volume will ramp up following the trigger and decay after the gate is released in gated or looped playback modes. The greater the clockwise rotation, the longer the ramp will be. Turning anticlockwise will add a decay phase. After the sample is triggered, the volume will decrease. The greater the anticlockwise rotation, the faster the decay will be until only a short click remains.
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Macro 5 - (Distortion) will add harmonics to the sound in the form of distortion. As the control is increased, drum samples will begin to sound more aggressive, while melodic sounds will have an overdriven character.
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Macro 6 - (HP Filter) adjusts the cutoff frequency of the high pass filter. Turning the control clockwise removes more low frequencies, which can make a sound sit better in the mix.
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Macro 7 - (LP Filter) works in the opposite sense to Macro 6, and adjusts the cutoff frequency of the low pass filter. Turning the control anticlockwise removes the upper frequency content of the sound. It can be used to remove high frequencies when they’re not needed and for sculpting sounds.
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Macro 8 - (Resonance) adjusts the low pass filter’s resonance. Instead of the filter’s response smoothly falling away above the cutoff frequency, frequencies around the cutoff point are boosted. Use this in conjunction with Macro 7 to “tune in” on an aspect of the sound that you wish to accentuate.
The table below summarises the functions of each Macro control as applied to the samples:
Macro |
Function |
---|---|
1 |
Tuning |
2 |
Start point |
3 |
Sample length |
4 |
Attack/decay |
5 |
Distortion |
6 |
HP Filter |
7 |
LP Filter |
8 |
LP Filter Resonance |
Changes to Macro controls can be recorded to the Pattern – see Recording knob movements (automation) for more information.
Macro controls may be reset to their default values by holding Clear and turning the control clockwise until its LED lights blue.
Live playing of samples may be recorded, quantised or non-quantised. Quantised recording will place drum hits on the closest step when recorded, while non-quantised recording will place hits directly on the intermediate micro steps. To toggle between quantised and non-quantised recording, hold Shift and press • Record. If Record Quantise is enabled, the Record button will light bright green when Shift is held. If Record Quantise is disabled (non-quantised), the Record button will light dim red when Shift is held.
When Record Quantise is disabled, the timing of drum hits recorded in real time is assigned to one of six micro steps in between adjacent Pattern steps. Any drum hits added manually will always be assigned to the step’s first micro step, which is on the exact beat of the step.
Enter Micro Step View by pressing Shift and Gate
, or press Gate again if you are already in Gate View. Pads 17 to 22 display the currently selected step’s micro step values. Press another step pad to select it and view its micro steps.
If the first pad is illuminated (as in the first example above), it indicates that the sample at the selected step will be precisely “on the beat” at the pattern step. In the second example above, deselecting micro step 1 and selecting micro step 4 delays the hit by three-sixths of the interval between steps.
You are not limited to tweaking sample timing – you can have the hit on as many micro steps as you want: each micro step pad can be turned “on” or “off”. In the example below, Step 5 will trigger the sample assigned to it three times, once on the beat and twice more two and four ticks later.
If you are entering samples in Record Mode (with Rec Quantise disabled) and can play fast enough, you can (depending on the BPM!) generate multiple hits within a single step. Inspect the micro step display to see this.
Using micro steps can add a whole new range of rhythmic possibilities to any pattern, and can create subtle rhythmic effects, or dramatically wonky grooves. As with many other aspects of Circuit Rhythm, we urge you to experiment!
Note that you can modify elements of a pattern from within Micro Step View, and add additional hits by adding micro step values to empty steps: these will be populated with the current default sample for the drum track in use.
Note also that all micro step hits adopt the velocity value and sample assigned to the step they are contained within (see below).
Samples entered in Note View may use Fixed or Variable Velocity. Variable Velocity is the default setting; if you press Shift, you will see that Velocity illuminates red confirming this. With Variable Velocity selected, samples recorded live will have Velocity values determined by how hard the sample pads are struck. This applies to Note View (both Slice and Keyboard), Expanded Keyboard Note View, Sample View and Drum Pads View.
To select Fixed Velocity, hold Shift and press Velocity
: the Velocity button changes colour to green. Now, all samples entered using the sample pads will always have a fixed velocity of 96 (12 pads lit in Velocity View – see below). This also applies to Note View (both Slice and Keyboard), Expanded Keyboard Note View, Sample View and Drum Pads View.
Samples programmed using the pattern step pads will always use Fixed Velocity, regardless of the selected velocity mode. Note that the selection of fixed or variable velocity is global, i.e., it applies to all tracks.
You can change the Velocity value of a step after you’ve created a pattern. This is done in Velocity View, which is selected by pressing Velocity .
In Velocity View, the two upper rows of the grid represent the 16-step pattern for the currently selected sample, while the two lower rows represent a 16-segment “fader”, spilt across two rows; the number of pads illuminated sand represent the Velocity value for the selected step.
In the example above, Steps 4, 8,10 and 16 are brightly lit, indicating that these steps have samples associated with them. One pad in the Pattern step display will flash alternate blue/white: this is the step whose Velocity value is being displayed. In the example, the Velocity value for this step is 40; the first five pads of Row 3 are lit sand (because 5 × 8 = 40), the remainder of the Velocity value display is unlit. If the Velocity value is not a multiple of 8, the “last” pad in the Velocity display will be dimly lit to indicate that it is between pad values. Such values may be recorded via live playing, but may not be programmed in manually.
Note also that you hear the sample at the step when you press the step pad.
You can change Velocity value by pressing the pad in the Velocity value display rows that corresponds to the Velocity value. If you wanted the hit at Step 12 in the example above to have a Velocity value of 96 instead of 40, you would press pad 12; Pads 1 to 12 now illuminate sand. If you want to decrease a Velocity value, press the pad corresponding to the required value.
No. of lit pads |
Velocity value |
No. of lit pads |
Velocity value |
---|---|---|---|
1 |
8 |
9 |
72 |
2 |
16 |
10 |
80 |
3 |
24 |
11 |
88 |
4 |
32 |
12 |
96 |
5 |
40 |
13 |
104 |
6 |
48 |
14 |
112 |
7 |
56 |
15 |
120 |
8 |
64 |
16 |
127 |
You can also use Velocity View to change Velocity values while a pattern is playing. In this case, you need to press and hold the pad for the step to have its Velocity value changed; you can do this at any point in the pattern. The held step pad will illuminate red, and the two lower rows will “freeze” to display the Velocity value of the selected step. Press the Velocity pad corresponding to the new value required. The pattern continues to play, so you can experiment with different Velocity values in real time and hear the differences.
Circuit Rhythm’s Probability function can be applied to individual steps on any track. Probability introduces a degree of random variation into a pattern. It is essentially a further step parameter, which decides whether the notes on the step will be played during each pass of the Pattern.
All steps are initially assigned with a Probability value of 100%, meaning that all steps will always be played, unless their Probability value is reduced: this is done using Probability View.
Probability View is the secondary view of the Pattern Settings button . Open it by holding Shift and pressing Pattern Settings, or press Pattern Settings a second time if already in Pattern Settings View to toggle the View.
Select the step in the Pattern display for which it is wished to alter the probability of the notes at that step. Pads 17 – 24 constitute a “probability meter”: initially all eight pads will be lit, with the colour deepening from 17 to 24.
There are eight possible values of Probability, determining the likelihood that the notes on the chosen step will play in any one pass through the Pattern. The number of lit pads indicates the Probability value: the higher pads in the row will be dark. The possible Probability values are:
Lit pads (Row 3) |
Probability |
---|---|
1 – 8 |
100% |
1 – 7 |
87.5% |
1 - 6 |
75% |
1 - 5 |
62.5% |
1 - 4 |
50% |
1 - 3 |
37.5% |
1 - 2 |
25% |
1 only |
12.5% |
To assign a Probability to a step while sequencer playback is stopped, press and release the pad for the step you wish to edit and press the pad in Row 3 corresponding to the Probability value. To assign Probability to a step while sequencer playback is active, you must keep the step pad held while you set a probability. All micro steps contained within the step will have a collective chance of being played according to the percentages above. This means that either all the micro steps at the step will play, or none of them will.
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A Probability of 100% means that the samples at the step will always be played.
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A Probability of 50% means that on average, the samples at the step will be played in half of the patterns.
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A Probability of 25% means that on average, the samples at the step will be played in a quarter of the patterns.
Clearing steps, Patterns and Projects will also reset all Probabilities to 100%. Live recording of a new sample to a step will also reset the probability at that step to 100%.
You can tweak the sonic parameters of assigned samples in real time using the Macro controls . Circuit Rhythm features automation, which means you can add the effect of these tweaks to the recorded pattern by entering Record Mode (by pressing • Record
) while moving the knobs.
On entering Record Mode, the LEDs below the active Macro controls initially retain the colour and brightness they had previously. However, as soon as you make an adjustment, the LED turns red to confirm that you are now recording the knob movement.
For the knob movements to be retained, you must exit Record Mode before the sequence loops back beyond the point in the pattern where you initially turned the Macro. Otherwise, will overwrite the automation data with that corresponding to the new knob position. Provided you do this, you’ll hear the effect of the Macro control being replayed when the sequence next loops round, at the point in the pattern where you turned the control.Circuit Rhythm
You can also record Macro control changes when the sequence isn’t playing: in Velocity View, Gate View or Probability View, press • Record, select the step at which the change should occur by pressing and holding the pad corresponding to the step; this will play the sample at that step. Then adjust the Macro control(s) as desired; the new value(s) will be written to the automation data; press Record again to exit Record Mode.
When the sequence is running, you will hear the effect of the Macro knob movements at that step. In the same manner, you may also edit the automation of Macro controls for specific steps in this way while the sequencer is playing back. With Record Mode enabled, hold down a step pad and turn a Macro control.
Any changes made to Macro values which are recorded as part of the pattern will be retained even if the sample is changed during the pattern (see “Sample Flip” Sample flip). You can tweak the sound at a specific step and then change the sample at that step: the tweak will still be effective.
You can delete any Macro automation data you don’t want to keep by holding down Clear and moving the knob in question anticlockwise by at least 20% of its rotation – the LED below the knob will turn red to confirm. But note this will clear the automation data for that Macro for the whole Pattern, not just at the sequencer’s current step.
To remove a step from a Pattern, hold Clear and press the step pad. This will remove the sample trigger and all automated parameters (Velocity, Micro Steps & Probability) that were assigned to the step.
To duplicate a step within a pattern, hold Duplicate and press a step. The copied step will light bright green. While still holding Duplicate, press the step pads to paste the original step’s data. This will duplicate sample flip, step parameters (Velocity, Micro Steps, Gate and Probability), and macro automation to the new step.
Drum Pads View is great for playing live. You can trigger samples for all eight tracks manually, and automatically repeat each trigger at one of eight tempo-related rates. This View lets you add rapid bursts of drum beats, especially trap-style hi-hat patterns with a triplet feel.
Drum Pads View is the secondary view of the Sample Rec button . Open it by holding Shift and pressing Sample Rec, or press Sample Rec a second time if already in Sample Rec View to toggle the View.
The default configuration of Drum Pads View is illustrated below:
If you are left-handed, you may prefer to reverse the pad layout by pressing the ▼ button:
Press ▲ to revert to swap back. The descriptions below reference the right-handed version.
The eight pads at the right of the two lower rows are trigger pads for each track. Pressing one of these will trigger the currently active sample for that track: this applies whether the sequence is running. If you want to add further live samples to the Pattern while it’s playing, enter Record Mode by pressing Rec •: any additional samples added in real time will now be added to the Pattern on a per-track basis. When a trigger pad is pressed, the macro knobs will update to display the track parameters for the most recently triggered track – this provides a quick way to tweak the sound of each track with reference to each other.
The eight pads at the left of the two upper rows let you select a note repeat rate. Pads 9 to 12 on Row 2 select standard rates at multiples of the currently set BPM, with Pad 9 being the BPM itself. Pads 1 to 4 on Row 1 select triplet multiples of these rates.
To play a sample with note repeat, hold down a Repeat Rate pad and press the sample trigger pad for the required track. The sample will repeat for as long as both pads are pressed. You can remove the need to use two fingers by pressing Pad 5, which makes the Repeat Rate pads latch on when they are tapped. Pad 5 illuminates bright white when the latch function is active. Press it a second time to turn the latch function off. Note repeat playback will over-ride any existing step data within a pattern. For example, if you are performing with a ¼ note repeat rate, but the existing pattern is made of steps that each contain six micro steps, you will only hear ¼ note rates for the duration of note repeat being active. This can be very useful to create dramatic fills while performing live.
You can record repeat note performances directly into patterns while Record Mode is active. Recording note repeat is destructive and will overwrite any micro steps that currently exist in the pattern – what you hear during recording is what the pattern will become.
See the grid images at Drum pads view to see which pad in Drum Pads View selects each repeat rate.