A database of every guitar chord?
For a tool I'm developing, I'd like to have a database of all playable chords (and voicings) on guitar.
"playable" would mean either :
any position that the human with the biggest stretch could play
all chords that were ever used (maybe by looking as some tab database ?)
Any other reasonable criteria
Ideally it would include :
every voicing (and all inversions and partial chords)
all common tunings
It's probably pushing it, but 7 and 8 string chords could be represented too
proper labels (tuning, chord name, fret numbers or notes played/muted).
I found a lot of lists of chords but they're not exhaustive at all.
As some online tools are able to identify chords and propose alternatives, I thought maybe they'd use a database of some sort ? And if so there might be a version of this database in the open ?
I'll also happily take any hint as to how to build it myself, and If you know an equivalent for another instrument (piano ?) it'll be useful too!
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The R library tabr contains such database:
It features 4000 chords.
The website given by @top in the comments contains more (40k) and is convenient to scrape.
None of those addresses non standard tuning nor 7 or 8 strings.
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