Drum Rack — Beat Machine

Every sound is synthesised, not sampled. Draw the pitch curve of your kick with a finger, then export the loop as WAV or the pattern as MIDI.

Drum Rack builds every drum sound from scratch. No samples anywhere — the kick, snare, hat and clap are synthesised as you play them, which is why a kick can drop from 200 Hz to 49 Hz along a curve you draw with your finger.

WHAT IT DOES

Four synthesised voices, each with its own controls. Draw the pitch envelope of the kick and the snare by hand: drag a point, add a point, bend the curve between two points. Watch the rendered waveform change as you go.

A 32-step sequencer with per-step velocity, timing nudge and ratchets, so a single step can hold a roll of up to eight hits. Time signatures from 3/4 to 7/4, grids from 1/8 to 1/32 including triplets.

Eighteen genre presets, from house and techno to jungle, boom bap and reggaeton. Each one loads a full kit and a pattern to start from.

Export a loop as a WAV file, or the pattern as MIDI. The MIDI carries velocity, nudge, ratchets and time signature, and lands on the General MIDI drum map — drop it on a drum rack in your own DAW and it plays on your own kit.

WHAT IT DOES NOT DO

No account. No sign-in. No advertising. No analytics. No tracking.

Your patterns stay on your device. Nothing is uploaded.

FROM THE LAB

Drum Rack is part of Lumlux Art Lab, a set of free browser tools for people who make music. The same drum machine runs on the website, so you can try it before installing anything.

Made in Antwerp by FDR-Sound.