Question 1

What does DRUMCAL generate?

Accepted Answer

DRUMCAL generates full drum grooves with 10 lanes: Kick, Snare, Closed Hat, Open Hat, Crash, Ride, Shaker, Tambourine, Toms, and Claps. It follows genre-weighted rhythm templates and then applies controlled variation for movement and feel.

Question 2

Can I regenerate only one lane without destroying the full groove?

Accepted Answer

Yes. Each row includes a regenerate button that rebuilds only that instrument lane. This lets you keep your kick and snare while exploring new hi-hat or percussion ideas.

Question 3

How do mute, solo, and lock work?

Accepted Answer

Mute silences a lane in playback, solo isolates selected lanes, and lock keeps a lane untouched when you generate a new full groove. This is useful for preserving anchor lanes while iterating textures and fills.

Question 4

Does DRUMCAL export separate MIDI files per instrument?

Accepted Answer

Yes. You can export each lane as an individual MIDI file or bundle all lanes into a single ZIP package. This is ideal for DAW workflows where each drum part is edited and processed independently.

Question 5

What parameters shape the generated groove?

Accepted Answer

Genre selects the rhythmic language, complexity changes event sophistication, density controls hit amount, syncopation increases off-beat emphasis, swing shifts timing feel, and humanize controls timing/velocity variation for less robotic output.

Question 6

Is DRUMCAL completely free? Do I need to sign up?

Accepted Answer

Yes, DRUMCAL is 100% free and requires no account, no download, and no install. It runs entirely in your browser using the WebAudio API. Just open the page and start generating.

Question 7

What genres does DRUMCAL support?

Accepted Answer

DRUMCAL supports 9 genres: Boom Bap, Lo-Fi, Chillhop, Trap, Phonk, Drill (with UK, Chicago and Brooklyn variants), R&B / Neo Soul (featuring J Dilla-style micro-timing), Reggae, and Reggaeton. Each genre has 3 sub-variants for a total of 27 distinct groove DNA combinations.

Question 8

Which DAWs are compatible with the exported MIDI files?

Accepted Answer

The MIDI stems exported by DRUMCAL are standard General MIDI files compatible with every major DAW: Ableton Live, FL Studio, Logic Pro, Studio One, Reaper, Cubase, GarageBand, and more. The ZIP package delivers one MIDI file per instrument lane, ready to drag and drop into any session.

Question 9

What is the difference between ZIP Stems and MULTI MIDI export?

Accepted Answer

ZIP Stems downloads one individual MIDI file per instrument (kick.mid, snare.mid, etc.), ideal for routing each part to a separate plugin or mixer channel. MULTI exports a single MIDI Type 1 file with all instruments on separate tracks — the preferred format for Ableton Live, FL Studio and Logic Pro's import wizard.

DRUMCAL

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