A grand piano · cut open, then played whole

Piano Action Lab

C4 · MIDI 60 · 261.63 Hz · key dip 10 mm · blow distance 47 mm · let-off 2 mm · check 16 mm

RESTKey up, hammer resting on the jack
Playback
Hammer travel through one stroke Hammer feltKey dip ×
Chords CC major, root position

Or play the keys below, several at once if you like. Whatever you hold gets named and drawn.

Inside the sound

Note names and frequencies: piano_88_keys.csv (88 keys, A4 = 440 Hz equal temperament). String lengths come from this piano's model up to C4, then a typical treble scale; wire gauges are typical values, so tensions are estimates. Inharmonicity and the beats come from the recordings themselves.