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gonna make a chord calculator tool because man i really need one that works the way my brain does
https://hikari.noyu.me/etc/ackordverktyg/ i made a thing to scratch a musical itch: it inverts chords for me
eventually it'll have a pretty coloured+named display of the intervals involved or something like that
note: i have not read the theory about how chord inversion works and have never written code to manipulate chords in this way before, so i might well have gotten something wrong, but i did physically move my fingers around on a keyboard to check some examples were right!
i should note that the numbers are just “semitones relative to the root”, this thing has no notion of guitar strings or keyboard keys for that matter. though it is because of guitar that i was annoyed enough that i wanted this tool; guitar is the semitone-core instrument
i already improved it a little! it now displays an underline on the note that was originally notated as 0 (the root, if the original chord was an in root position), and the space at the right now visualises the intervals
i'll add colour-coding if i can figure out a good scheme
the intervals between notes (not to the root) are now colour-coded with an arbitrary scheme i thought was good, because i thought that would be cool. if this upsets your music autism please tell me why because i'm sure your reasoning will be interesting to hear!
@hikari it mostly bugs me that it expresses the major third above the root as 4 instead of 3, and then that the color coding is all in terms of semitones instead of scale degrees (which there are conveniently 7 of, which is a nice number for colors)