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Riffo · Credits
Credits
Last updated: October 8, 2026
All of Riffo's licks, exercises and backing-track arrangements are original. The art and the mascot are original work by Musico. The sounds and tools below come from generous people who share their work. Thank you!
Sounds
DrumGizmo: MuldjordKit
Drums in the backing tracks. Kit by Lars Muldjord, FreePats SF2 version (2020-10-18).
Drum samples provided by DrumGizmo.org
License: CC BY 4.0
FreePats Electric Guitar FSBS (clean, dist2, jazz)
Electric guitar in the lick reference audio and the backing-track chords.
License: CC0 1.0
FreePats Spanish Classical Guitar
Nylon-string guitar (MPB, bossa, samba, choro, sertanejo, forró).
License: CC0 1.0
FreePats World Percussion
Shaker, pandeiro, tamborim and conga in the backing tracks.
License: CC0 1.0
Fonts
Open-source software
React, React Native, Expo
Foundation of the app and the website.
License: MIT
TanStack Router / Start
The riffo.getmusico.com website.
License: MIT
React Native Skia, Reanimated, react-native-audio-api, MMKV
Game graphics, animation, audio, note detection and on-device storage.
License: Each project's open-source licence
Basic Pitch (Spotify)
Note detection model (chords included) that runs on the phone to write the tab of a recording.
Basic Pitch. Copyright 2022 Spotify AB.
License: Apache 2.0
TabCNN
Model that picks the string and fret of each note in the tab of a recording, on the phone.
TabCNN (Wiggins and Kim, ISMIR 2019). Weights: Hegel Pedroza, Wallace Abreu, Ryan Corey and Iran Roman, DAFx 2024 (zenodo.org/records/11406378), converted to half precision.
License: CC BY 4.0
Elixir, Phoenix, Ecto, Bandit
The Riffo API.
License: Apache 2.0 / MIT
Research references
Riffo is an app by Musico Labs LTDA.