MCP Server

AI Jam Sessions. Machine learning the old fashioned way.

An MCP server that teaches AI to play piano and guitar — and sing. 120 songs across 12 genres. Six sound engines. Interactive guitar tablature. A browser cockpit with vocal synthesizer. A practice journal that remembers everything.

Get started Read the Handbook

Install

npm install -g @mcptoolshop/ai-jam-sessions

Play

ai-jam-sessions play fur-elise --engine piano --speed 0.7

Sing

ai-jam-sessions sing imagine --with-piano

What makes it tick

Five senses for a model that has none.

Reading

Real MIDI sheet music with deep musical annotations — parsed, analyzed, and explained. Not hand-written approximations.

Hearing

Six audio engines play through your speakers so the humans in the room become the AI's ears.

Seeing

Piano roll renders as SVG the model can read back. Interactive guitar tablature. Browser cockpit with visual keyboard.

Remembering

Practice journal persists across sessions. Next time, the AI reads its journal and picks up where it left off.

Singing

Vocal tract synthesis with 20 voice presets. Sing-along mode with solfege, contour, and syllable narration.

31 MCP Tools

Learn, play, sing, build — browse songs, play at any speed, render piano rolls, write annotations, and journal reflections.

Quick start

Install globally

npm install -g @mcptoolshop/ai-jam-sessions

Claude Desktop config

{
  "mcpServers": {
    "ai_jam_sessions": {
      "command": "npx",
      "args": [
        "-y", "-p",
        "@mcptoolshop/ai-jam-sessions",
        "ai-jam-sessions-mcp"
      ]
    }
  }
}

Play a song

# Play Fur Elise at 70% speed
ai-jam-sessions play fur-elise --speed 0.7

# View piano roll as SVG
ai-jam-sessions view autumn-leaves --measures 1-16

# Sing along with piano
ai-jam-sessions sing imagine --with-piano

Guitar tablature

# View interactive guitar tab
ai-jam-sessions view-guitar greensleeves

# List tunings and voices
ai-jam-sessions list --genre folk

Sound engines

Six engines plus a layered combinator that runs any two simultaneously.

Engine

Type

Character

Oscillator Piano

Additive synthesis

Multi-harmonic piano with hammer noise, 48-voice polyphony, stereo imaging

Sample Piano

WAV playback

Salamander Grand Piano — 480 samples, 16 velocity layers, 88 keys

Vocal (Sample)

Pitch-shifted samples

Sustained vowel tones with portamento and legato mode

Vocal Tract

Physical model

LF glottal waveform through 44-cell digital waveguide. Soprano, alto, tenor, bass

Vocal Synth

Additive synthesis

15 Kokoro voice presets with formant shaping, breathiness, vibrato

Guitar

Additive synthesis

Physically-modeled plucked string — 4 presets, 8 tunings, 17 tunable parameters

Layered

Combinator

Wraps two engines, dispatches every MIDI event to both

Song library

120 songs across 12 genres. Each genre has a deeply annotated exemplar.

Genre

Exemplar

Key

Teaches

Blues

The Thrill Is Gone

B minor

Minor blues form, call-and-response

Classical

Fur Elise

A minor

Rondo form, touch differentiation

Film

Comptine d'un autre ete

E minor

Arpeggiated textures, dynamic architecture

Folk

Greensleeves

E minor

3/4 waltz feel, modal mixture

Jazz

Autumn Leaves

G minor

ii-V-I progressions, swing eighths

Latin

The Girl from Ipanema

F major

Bossa nova rhythm, chromatic modulation

New-Age

River Flows in You

A major

I-V-vi-IV recognition, flowing arpeggios

Pop

Imagine

C major

Arpeggiated accompaniment, restraint

Ragtime

The Entertainer

C major

Oom-pah bass, syncopation

R&B

Superstition

Eb minor

16th-note funk, percussive keyboard

Rock

Your Song

Eb major

Piano ballad voice-leading

Soul

Lean on Me

C major

Diatonic melody, gospel accompaniment

MCP tools

31 tools across four categories: Learn, Play, Sing, and Build.

Tool