credits and licenses
Every groove names where it came from. Styles from the drum kit dataset are one drummer's interpretation on a drum kit, not a record of a tradition. Grids simplify real playing: every hit is placed on the nearest step.
Grooves
- Groove MIDI Dataset, Google LLC (Magenta), magenta.tensorflow.org. CC BY 4.0. Performances by ten drummers; loops cut and gridded for this app.
- Pulse by Studio B, pulse.studiobdev.com. CC BY-SA 4.0. Meter grooves, the clave family, tresillo and the Agbekor bell.
- Wikipedia, "Tumbao", en.wikipedia.org/wiki/Tumbao. CC BY-SA 4.0. The basic son montuno conga tumbao.
- World percussion set by Studio B: Arabic darbuka rhythms, flamenco compás and the kpanlogo bell, written fresh from patterns that two or more independent sources write out the same way. Each groove lists the sources it was checked against. Only the strokes the sources share are used.
The groove collection is licensed CC BY-SA 4.0. Credit: "ghosted by Studio B, CC BY-SA 4.0", plus the source named on each groove.
Sounds
- Darbuka (doom, tak), palmas (hand claps): FreePats World Percussion, recorded by Xavimart, Gonzalo and Roberto, freepats.zenvoid.org. CC0.
- Claves, cowbell, agogo, shaker: VCSL by Versilian Studios, versilian-studios.com. CC0.
- Drum kit (kick, snare, rim shot, cross-stick, hi-hats, toms, ride, crash), conga, tumba: Virtuosity Drums by Versilian Studios, github.com/sfzinstruments/virtuosity_drums. CC0. Jazz kit played by Austin McMahon; each kit sound blends the close microphone with the overheads. The mid tom is the high tom tuned down.
- Stand-ins: the agogo plays the gankogui part and a shaker plays the axatse part until those instruments are recorded. The conga slap, heel and tip use the documented muted conga stroke. Every sound is a recording of a real instrument.
Software and fonts
Code: GPL-3.0-or-later. Poppins font: SIL Open Font License 1.1. Studio B names and logos are not covered by these licenses.