KUTTORKeystone Musical Instruments

Slice shaper pedal

KuttorSlice Shaper

Shred/Slice/Shift/Sculpt/Spawn

Kuttor captures what you play, cuts it into slices, and plays it back to you as tempo-synced arpeggios, stutters, reverse loops and scale-locked patterns. Hold one note and it writes a melody around it. Strum a chord and it dices it into a moving pad. However wild the result, it stays in time.

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Kuttor Slice Shaper pedal, top view: black enclosure with blue silkscreen, six knobs, three toggle switches and two footswitches

Switch 2 · Cycle

Three ways to reshape a loop

The Cycle switch decides what happens to the pitch of each slice. Flip it here to see how the same loop gets rearranged across the notes of your chosen scale.

Cycle

Quasar

Tempo-synced arpeggio. The slices step through your scale in time, so a single sustained note turns into a melody. Choose the rate, the pattern (straight, swing, triplet, gallop or dotted), the starting note and how long each note rings.

Audio demos

Listen

Straight from the pedal. Headphones help on the stereo clip.

Dicey loops, stacked

Stereo · 0:41

Multitracking a dicey Kuttor into a looper, then playing over it.

Reverse pad

Mono · 0:39

Reversing a quarter-note loop until it becomes a pad.

Reverse chords

Mono · 0:19

Reverse-looping chords with the momentary switch in free tempo.

Happy accident

Mono · 0:08

Something surprising built from what was played.

Watch Kuttor in action on YouTube.

Watch the video

Controls

The panel

Six knobs, three switches, two footswitches. Slice Length and Mix always do the same job; the four in between change roles with the Cycle mode, so each mode gets controls built for it.

Pot 1
Slice LengthLoop length in tempo-synced steps from 1/32 bar up to 8 bars.
Pot 2
Slice Division1 to 32 slices, or the arpeggio rate in Quasar (1/2 down to 1/32, with dotted and triplet options).
Pot 3
Slice PlaybackNormal, stutter, random or reverse slices, or the arpeggio pattern in Quasar.
Pot 4
Playback SpeedScale-quantized pitch: transposes the loop, sets the arpeggio's starting note, or sets how far Magnetar can scatter.
Pot 5
FeedbackFeedback and decay for loops that degrade over time, or note gate length from staccato to legato in Quasar.
Pot 6
MixDry to fully wet.
Switch 1
DirectionForward with slicing, a clean forward loop, or reverse with slicing.
Switch 3
TempoTap, free or MIDI clock. In MIDI mode, captures land on the bar and arpeggios lock to the clock.
Left switch
Momentary / RepeatHold to capture or repeat, release to let go. Hold both footswitches to tap tempo.
Right switch
LatchTurns loop capture and playback on or off.

Scale menu · Pot 4

Ten scales, always in key

Every slice lands on a note from the scale you pick, ordered from sparse to dense. The two LEDs show which one is active: the right LED names the family, the left picks the scale within it.

OctavesIntervals · 2 notes
Octaves + FifthsIntervals · 3 notes
Circle of 5thsIntervals · 3 notes
Major TriadTriads/7ths · default
Maj7 3rd InversionTriads/7ths · 5 notes
Minor TriadTriads/7ths · 4 notes
Minor Triad+Triads/7ths · 6 notes
Bluesy 1Bluesy · 6 notes
Bluesy 2Bluesy · 6 notes
SemitonesChromatic · 18 notes

Specifications

Built for your whole rig

Loop length
1/32 bar to 8 bars, tempo-synced
Slice engine
1, 2, 4, 8, 16 or 32 slices
Pitch
10 scales, about −12 to +5 semitones
Timing
Tap, free and MIDI clock
MIDI
Type-A TRS In and Thru, full CC control, Start/Stop/Continue
Audio
Mono, mono-to-stereo or stereo, buffered bypass
Expression
APEX: assign any supported knob to an expression pedal
Presets
128 onboard, managed in Keystone Control Center
Updates
Free lifetime firmware over USB
Power
9V DC center-negative, regulated
Works with
Guitar, bass, keys, synths and studio chains
Warranty
One year

Put Kuttor on your board

Try it in your rig for 30 days. If it isn't for you, send it back.

Buy Kuttor · $329