Harmonic reduction

[Urs Liska]

Hi all,

did anyone so far create a tool for an automatic harmonic reduction of
polyphonic music?

Attached you'll find one way how that could look like done manually.

The task would be to

 * read an arbitrary number of voices (music expressions)
 * determine the moments where "something" happens (note/rest)
 * calculate the chords for each of these steps
 * construct the corresponding music
    * a) at the absolute pitches
    * b) squashed into one of two ranges (all notes within one octave /
      "closest" setting but in order (this is not in the example)) 

I'm not fixated in *exactly* the output of the example but would like
to know if there's something existing in that direction.

Thanks
Urs

excerpt.ly
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excerpt.pdf
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