MAD SCIENTIST MUSIC TOOLS · MIDI ARRANGER

The Secret Band.

Your piano. Your band.

Mad Scientist Music Tools
MIDI disconnected
LIVE · CHORD
C
Play a left-hand chord on your piano
Your hands lead. The band follows.
Recognises chords below your split point.
PERFORMANCE CONTROLS
CURRENT STYLE
Jazz Trio4/4
Swing · piano, upright bass and light drums
BAND ENERGY
2 · Relaxed
Bar 1 · beat 1
THE BAND · MIXER
LEFT HAND
* Band only requires Local Control Off or suitable MIDI routing; currently inactive.
THE LIVING BAND

Four musicians, one band

Separate MIDI channels · GM sounds
Band energy shapes phrasing and note density. Human Feel adds subtle touch and timing. GM sounds depend on your piano; audition each style on the Donner.
STYLE LIBRARY

12 styles with a personality

A vintage-minded band: distinct grooves, four-bar phrases, responsive accompaniment and tasteful fills. Disco Night remains as a later-era favourite.
SONGBOOK · LOCAL

Save your band setup

Saves style, tempo, variation, energy, Human Feel, volume and pan in this browser. No audio or MIDI recording.

MIDI · DONNER DDP-80 PRO

Connection and performance

Use wired USB MIDI in Chrome or Edge.

APP · VERSION 0.6

Open the hosted app to install it.

PEDALS · HANDS ON THE KEYS

Left starts · middle stops · right remains sustain. Your Donner may send different MIDI messages.

Pedal test: waiting for MIDI

Pressing a pedal (value ≥ 64) starts or stops the band once. Releasing does nothing. Pedal control requires incoming MIDI messages.

MIDI CHANNEL PLAN

Drums 10 · Bass 2
Chords 3 · Extra 4

Your piano notes are not echoed. Piano + Band keeps the local piano audible.

Left-hand sound switching still requires verified Local Control / MIDI routing. Band only remains inactive.

Pan uses standard MIDI CC10. Stereo placement depends on your piano and speakers.

GETTING STARTED

Play with the band

1 · Connect & play

Connect USB MIDI in Settings. Play chords below the split point. The chord display follows your left hand; your right hand stays free.

Major, minor, 7, maj7, m7, dim, aug, sus2 and sus4 are recognised.

2 · Lead the band

Choose a style. A–D and Band Energy shape activity; Human Feel shapes touch and timing. Intro, fill, break and ending follow the bar.

Left CC67 starts, middle CC66 stops. Right CC64 remains sustain. Release does not trigger an action.

3 · Shape your sound

Use the four upright faders in Play. Each has volume, mute and a left/right pan control. Double-click Pan to centre it.

Playing musicians glow and move subtly with their MIDI notes. Muted players rest. Shade darkens the wood; both finish and shade are saved.

4 · Install & update

Publish the ZIP on your existing HTTPS Cloudflare address. In Settings choose Install app, or use your browser’s Install / Add to Home Screen menu.

Upload future releases to that same address. Choose Check for updates, then Update and reopen while stopped. SongBook stays in this browser.

Version 0.6: 0.5 styles retained. No demo chord buttons: play your piano. Left-hand routing is unchanged. Installation needs a compatible browser; offline use needs one completed online load. Updates wait for you and never deliberately interrupt playback.