SecretKeys — Hidden voices, revealed.

LIVE / KEYS

Waiting for MIDI input

Octave0Via MIDI Echo · drums stay unchanged

Arpeggiator Off

ArpHoldPatternBPMRateRangeGate 60%Arp off

Play your piano

VELOCITY —

A088 keys · C4 = MIDI 60C8

01 / PERFORMANCE

12 factory presets · 52 user slots

Edit mode

Select a preset

PRESET BANK

PROGRAM

001

MSB 0 · LSB 0

Bank A · select a pad

MIDI / GM BANK

MSBLSB

Browse programs

Programs 1–128 · Go to preview

12 factory presets · user slots 13–64

02 / TWEAK SOUND

Tweak your sound

Select a preset to start shaping its sound.

Time · CC5 0

Defaults are app settings; the piano cannot report its original effect values.

DUAL SOUND / GM

Layer · two instruments, one keyboard

Layer plays both instruments across the full keyboard. Split remains available in its own tab. Requires a multitimbral MIDI instrument and Local Off.

Sound A · MIDI channel 1Sound B · MIDI channel 2Volume A 100Volume B 90

Layer off · connect your MIDI piano first.

Lab

Target

Tempo · BPMTouch curveEcho pitch

MIDI EchoRateRepeatsDecayShort MIDI note trails · excludes drums

Auto PanCycleDepthCC10 · returns to centre when off

MIDI connection

MIDI outputChannel

● Not connected

LOCAL CONTROL & MIDI ECHO

Keys and sound engine

Echo everything to all · MIDI Echo

Echo off

03 / MIDI SPLIT

Two sounds, one keyboard

Enable split · auto setup

Piano MIDI input · auto selectFirst key of right zone

Saved splits

Saved setupSave as

Save up to 12 named setups, including both arpeggiators. MIDI ports stay device-specific.

Saved preset for LEFTSaved preset for RIGHT

Split arpeggiators · optional

Choose an arp for either hand, then enable Split. T = triplet · Hold keeps your pattern playing.

Advanced · channels, programs & octaves

Left · lower keys

Channel · autoProgram (1–128)Octave

Right · upper keys

Channel · autoProgram (1–128)Octave

Choose a Left and Right sound, set the split point, then enable split. Local Off and MIDI Echo are set automatically.

Piano compatibility test

Make and model (for your report)Choose a test

Results on this device

Bank Explorer · microphone self-test

Hearing safety: start with the piano volume low, keep your microphone away from speakers, and stop immediately if you hear feedback or distortion. Tests play MIDI notes automatically. The microphone is used only after permission and analysis stays local.

SECRETKEYS / ON YOUR DEVICE

Install & update

App v1.35.2Preparing offline storage…

Open the app online in Chrome once and wait for “Offline ready”. Then install using the button or Chrome menu ⋮. Your presets remain saved locally.

A little guidance

Connect
Use a USB data cable. Open MIDI settings, connect and select your piano. One output is selected automatically.

Play
Choose a preset and play your piano. The piano makes the sound; SecretKeys sends MIDI.

Create
Enable Edit mode. Select slot 13–64, choose a program and save. Export your layout as a backup.

Explore
Try effects or split. Support depends on your instrument. Use Piano test to check what works.

Recover
Stop all notes silences held notes. Restore piano also turns Echo and split off and sends Local On.

Need a hint?
Page help gives a short guide to the tab you are viewing. Full screen keeps the controls together.

New in 1.35.2
Arrange Pads swaps complete sounds and remaps learned controller positions. Lab Layer sends every note to two separate MIDI channels. Use Stop Layer before switching to Split. Piano test includes a microphone-based Bank Explorer; start at low volume.

MIDI monitor (sent messages)

No messages yet.

Diagnostics run only while this monitor is open. Shows up to 80 recent messages.

SecretKeys.

Drum pads