From sketch to score to stage

Browser-based
no installation

Algorithmic composition for contemporary music

Try Free Join a Rehearsal

Spectral. Serial. Algorithmic. Stochastic. Microtonal. Counterpoint. Live performance. All in your browser.

Spectral

Serial

Algorithmic

Stochastic

Microtonal

Counterpoint

Live Performance

Grafer is where compositional ideas become structure. 130+ nodes for pitch fields, rhythm trees, spectral morphing, stochastic processes, and counterpoint — connected in a visual graph, rendered as notation, exported to your engraver, and performed live with conductor mode, performer tablets, and hardware OSC. No installation. No barriers. Just the tools you need.

Start Composing Explore Features

Think in graphs, hear in notation

Your compositional process as a visible, editable flow of musical transformations. Every connection is a decision you can trace, change, and hear instantly.

Node graph
Real-time
MusicXML

Research-grade techniques, zero friction

Pitch multiplication, Markov chains, Brownian walks, FFT analysis, species counterpoint — algorithms grounded in compositional theory, accessible without a single line of code.

130+ nodes
Browser
No install

Compose and perform in one place

The same project that generates your score also drives the rehearsal. Conductor mode, performer tablets, audience view, live OSC to SuperCollider or Max — no export step, no separate tool.

Conductor
Tablets
OSC