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Check it Out: https://www.guitaa.com/chords/jayda-hap ... usic-video
Select any song, It'll extract the chords. But How?"
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If it's anything like RiffStation (software I bought a few years ago, sadly no longer available) then it's basically a polyphonic equivalent of the pitch detection in electronic guitar tuners, coupled with some heuristics to help guide the algorithm.music143 wrote:Select any song, It'll extract the chords. But How?
I've not used the site you've linked, but RiffStation does a pretty good of identifying chords in simple songs that don't stray beyond the I IV V + relative minors - but doesn't cope well with key changes, modulations and songs that use both minor and major versions of the same chord.
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Now, what that program does is considerably messier than that. The melody is constantly changing, so it must do a sample every x milliseconds, for some x. At any instant, the chord may be incomplete or ambiguous. Somehow or other it has to average all that out and get some sort of general trend, which becomes a "best guess" for a chord.
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