Ensemble Seating Chart

Stage positions for various jazz ensembles — click an instrument to hear its tone.

Global key

Ensemble Seating Chart

Transposing instruments: C concert pitch · B♭ notated a major 2nd higher · E♭ notated a major 6th higher. 🖐 Drag a player: left/right = stereo position (Pan), front/back = volume (near/far); Double-click = mute/unmute; single-click a wind player = cycle its tone (Trumpet ↔ Sax ↔ Clarinet).

Standby

Immersive Chord Accompaniment Machine

Separate bars with “|”; put two chords in one bar with a space, e.g. Gm7 C7. You can pause during playback → edit → resume instantly.





💾 My progression database (stored locally in your browser; export a JSON backup)


Standby
🎹 Piano90%
🎸 Bass100%
🥁 Drums80%

Jam Wizard

(click a progress dot to go back and change a step)
1
2
3
JAZZ BAR JAZZ BAR

Step 1 / 3 — Choose the song (selecting switches the background to that song’s mood)

🌸
Bāng Chhun-hong
Taiwan · Teng Yu-hsien · Lyrical
🍂
Sù-kùi-hông
Taiwan · Teng Yu-hsien · Upbeat
🎺
When the Saints Go Marching In
New Orleans traditional · Public domain

Step 2 / 3 — Choose the tempo

Ballad
♩=72
Medium
♩=100
Medium-Up
♩=132
Up
♩=168
Burnin'
♩=208

Step 3 / 3 — Choose the style

🥃
Swing
🌊
Bossa
🔥
Latin

Lead Sheet · Jam Room

Pick a song and press ▶ to start the jam; chorus 1 is the original theme, chorus 2 auto-generates an improvisation.





Standby

➕ Add custom song / fix a built-in melody

Tip: built-in melodies are simplified examples and may differ from the original score. If you have a correct MIDI (e.g. exported from MuseScore), you can override it.





Immersive Venues

Switch scenes → background mood + Web Audio synthesized ambience (noise + filters, zero audio files).

Current: none