Initialize Strudel in browser

Write pattern to editor with optional auto-play and validation

Append code to current pattern

Insert code at specific line

Replace pattern section

Clear the editor

Get current pattern code

Start playing pattern

Pause playback

Stop playback

Transpose notes by semitones

Reverse pattern

Time stretch pattern

Quantize to grid

Add human timing variation

Create pattern variations

Add effect to pattern

Remove effect

Set BPM

Add swing to pattern

Apply scale to notes

Transform current pattern to match a different emotional mood by adjusting tempo, effects, and note choices. Moods: dark, euphoric, melancholic, aggressive, dreamy, peaceful, energetic.

Adjust the overall energy level of the current pattern on a 0-10 scale. 0: minimal/ambient, 1-2: sparse, 3-4: light/relaxed, 5-6: normal/moderate, 7-8: driving/intense, 9-10: maximum. Auto-plays after applying energy level.

Incrementally refine the current pattern with simple directional commands. Supports: faster/slower (tempo), louder/quieter (gain), brighter/darker (filter cutoff), "more reverb"/drier (reverb). Auto-plays after applying refinement.

Generate complete pattern from style with optional auto-play

Generate drum pattern

Generate bassline

Generate melody from scale

Generate scale notes

Generate chord progression

Generate Euclidean rhythm

Generate polyrhythm

Generate drum fill

Complete audio analysis

FFT spectrum analysis

Rhythm analysis

BPM detection

Key detection

Validate pattern with runtime error checking (monitors Strudel console for errors)

Save pattern with metadata

Load saved pattern

List saved patterns

Undo last action

Redo action

List recent pattern history with timestamps and previews

Restore a previous pattern from history by ID

Compare two patterns from history showing differences

Get performance metrics and bottlenecks

Get current memory usage statistics

Take a screenshot of the current Strudel editor state

Get current browser and playback status (quick state check)

Get detailed browser diagnostics including cache, errors, and performance

Display captured console errors and warnings from Strudel

Bring browser window to foreground for visual feedback

Generate, write, and play a complete pattern in one step. Auto-initializes browser if needed.

Get AI-powered creative feedback on the current pattern using Google Gemini. Analyzes pattern structure and optionally audio.

Analyze the currently playing audio and suggest a complementary Strudel pattern using Gemini AI. Extracts tempo, key, and spectral features locally, then uses AI to generate a matching pattern. Returns pattern text (not auto-executed).

AI generates a complementary layer to jam with your pattern. Analyzes current pattern to detect tempo, key, and existing layers, then generates a matching layer that fits musically.

Start capturing audio from Strudel output. Audio must be playing for capture to work.

Stop audio capture and return the recorded audio as base64-encoded data.

Capture a fixed-duration audio sample from Strudel output. Audio must be playing.

Export current pattern to MIDI file. Parses note(), n(), and chord() functions.

Create a new isolated Strudel browser session. Sessions share one browser but have isolated contexts.

Close and destroy a Strudel session, releasing its resources.

List all active Strudel sessions with their metadata.

Change the default session used by other tools.