STUTTER

A 4-voice MIDI step sequencer for the Game Boy
hobbychop.com
4 voices · 2 pulse · wave · noise 32 patterns 128-step song arranger per-voice ADSR · vibrato · tremolo · arp MIDI clock in / out sync live glitch FX 3 battery-backed saves real DMG & GBC hardware
STUTTER● power


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     [STUTTER]


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   HOBBYCHOP.COM


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               V39

Boot splash

Every cartridge powers up on the title card - STUTTER, by hobbychop.com.

SONG● page 0
     [STUTTER]    P0
+---++---++---++---+
|   ||   ||   ||   |
|>0 || 1 || 1 || 2 |
+---++---++---++---+
+---++---++---++---+
|   ||   ||   ||   |
| 3 || 1 || 1 || 4 |
+---++---++---++---+
+---++---++---++---+
|   ||   ||   ||   |
| 5 || 6 ||X ||   |
+---++---++---++---+
+---++---++---++---+
|   ||   ||   ||   |
|   ||   ||   ||   |
+---++---++---++---+
 >                O

Song arranger

Chain pattern slots across a 4×4 grid - 8 pages, 128 slots. Drop an X to mark the loop.

PATTERN● edit
 SNG [STUTTER]   P00
 STG


P1 5 8 5 8 5 8 5 8
in 0 0 0 0 0 0 0 0
--------------------
P2 . 3 . 3 . 3 . 3
in 1 1 1 1 1 1 1 1
--------------------
WV C . . C . . C .
in 2 2 2 2 2 2 2 2
--------------------
NS x . x . x . x .
in 3 3 3 3 3 3 3 3

            _
 >                O

Pattern editor

A 16-step grid over all four voices. Every step carries its own note and instrument.

INSTRUMENT● P1·03
 P1  INST 03
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>VOL           12
 DUT           02
 ATK           04
 DEC           08
 SUS           10
 REL           06
 OCT           +0
 PAN           +0
 DET           +0
 VBR           03
 VBD           18
 ARP           64
 SWP          -18

Instrument lab

Shape each voice: ADSR envelope, vibrato, tremolo, arpeggiator, pulse-width & pitch modulation.

SETTINGS● V39
 SETTINGS      V39
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 NEW

 SAVE

 LOAD

>BPM           120

 LOOP          ON

 AGM           ON

 SNC           I1X

Settings

Tempo, looping, auto-glitch, and MIDI clock direction - sync in as a slave or out as the master.

SAVE / LOAD● SRAM



     SAVE TO:

   1  INTRO

>  2  DROP

   3  ........


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   >OK     B-BACK

Named saves

Store three full songs to cartridge SRAM with custom names - they survive a power-off.

GLITCH● live
     [STUTTER]    P1
+---++---++---++---+
|   ||   ||   ||   |
| 0 || 1 ||1 || 2 |
+---++---++---++---+
+---++---++---++---+
|   ||   ||   ||   |
| 3 || 1 || 1 || 4 |
+---++---++---++---+

   A STUT   B DRONE
   L REV    R REPT
   UP LOOP  DN HALF
   A+DIR  = PITCH
   B+DIR  = ARPS

 >     GLITCH     O

Glitch performance

Hold a button while it plays for live stutter, drone, reverse, 4- and 2-step repeats, and half-time. Hold A + the D-pad for octave jumps plus tape-stop / spin-up pitch bends; hold B + the D-pad for four live arpeggios (up, down, bounce, random) on any patch.