rotate to landscape best in Google Chrome designed for 25-key + pad controllers
SWOON
x
nightfall sound co. — for 25-key + pad controllers
layout
arp off/on
Toggle arpeggiator. Open ARP for pattern, rate & octave settings.
murk off/on
Toggle MURK fx chain. Open MURK for fuzz & space settings.
joystick
Left/right sweeps filter and bends pitch simultaneously. Snaps to knob position on release.
pads 1-8
Strum chord pads. Long press to MIDI learn a pad to any note.
keys
Play melody notes. Full two-octave range C3-C5.
MPK Mini MK1/MK2 mapping
CONTROL
CC
SWOON
K1
CC1
Filter
K2
CC2
Attack
K3
CC3
Decay
K4
CC4
Chaos
K5-K8
CC5-8
Assignable (smear/drift/tail/vol)
Joystick X
Pitch Bend
Filter sweep + pitch bend
Pads (Bank A)
Notes 32-39
Chord pads 1-8
Keys
Notes 48-72
Melody (C3-C5)
Sustain / CC9
CC64 / CC9
Toggle arp on/off
synth engine knobs
FILTER
Shared lowpass. Sweeps all held voices in real time.
ATTACK
Note attack time. Low = plucky, high = slow swell.
DECAY
Release time after key lift.
CHAOS
Random pitch detune + strum timing jitter per voice.
K5-K8
Assignable via dropdown. Defaults: smear, drift, tail, vol.
MURK fx
DENSITY
Waveshaper drive. Higher = more saturation.
VOWEL
Mid filter tone shaping.
SAG
Dynamic compression. Simulates amp sag.
SMEAR
Haas stereo width + vibrato depth.
DRIFT
Pre-reverb delay feedback.
TAIL
Reverb decay length and wet level.
VOL
Output volume.
tips
Click L on any engine knob then turn an MPK knob to MIDI learn it.
Long press any chord pad to MIDI learn it to an MPK pad.
MPK Mini: use Pad Bank A (notes 32-39) for pads.
On iOS: tap Share → Add to Home Screen for full screen.
ARP hold: notes stay in arpeggiator even after release.