Vorin

Browser beat lab: drums, synths, sampled instruments, song arrangement and mixing, 100% client-side.

Grand Piano: "Salamander Grand Piano V3" by Alexander Holm, licensed under CC BY 3.0. Source: archive.org/details/SalamanderGrandPianoV3. Samples were trimmed and re-encoded to Ogg Vorbis.
Strings, upright bass, harp, brass (trumpet, French horn, trombone, tuba), woodwinds (flute, clarinet, oboe, bassoon): VSCO 2 Community Edition by Versilian Studios, CC0.
Mallets (marimba, xylophone, vibraphone, glockenspiel, tubular bells), kalimba, Dan Tranh, balafon, harpsichord, tenor sax, claps, shaker, conga, cowbell: Versilian Community Sample Library (VCSL), CC0.
Acoustic kit, crash, ride, high tom, rim: Virtuosity Drums (Versilian Studios / sfzinstruments), CC0.
Nylon guitar: Spanish Classical Guitar by FreePats (Roberto), CC0. Electric guitar (clean, crunch and distorted through Vorin's amp sim) and bass guitar: Emilyguitar and Growlybass by Karoryfer Samples, CC0.
All other sounds are synthesized in real time (subtractive, FM, Karplus-Strong, guitar physical model, additive organ and formant choir engines).

Full details: samples/LICENSES.md.

Keyboard shortcuts

`	Keyboard instrument on/off. While on: `A`–`;` white keys, `W` `E` `T` `Y` `U` `O` `P` black keys, `Z`/`X` octave, `C`/`V` velocity. Other letter shortcuts pause until you turn it off
`Space`	Play / stop
`↑`/`↓`	BPM ±1 (Shift ±10)
`1`–`9`	Genre presets
`S` / `L`	Save / load
`E`	Export WAV
`J`	Export JSON
`T`	Tap tempo
`Ctrl+Z` / `Ctrl+Y`	Undo / redo
`Ctrl+C` / `Ctrl+V`	Copy / paste pattern
`Shift+click`	Accent a drum step
`Shift+1`–`5`	Pattern / Synth / Arrange / FX / Mixer tabs
`P`	Pattern / Song mode
`[` / `]`	Previous / next pattern
`Shift+drag`	Paint notes (drag = draw/resize a note)
`V` / `Shift+V`	Cycle visualizer mode / show-hide
`F`	Fullscreen visualizer
`M`	Metronome on/off
`Delete`	Clear pattern
`B`	Instrument browser
`?` / `Esc`	Show / hide this

Hover any control for a tip.

Drums (click = on/off · Shift+click = accent · Closed Hat: click again for a roll)