Durations in terms of formal music notation are hard

[VictorCMiraldo]

Using note values in Half, Whole, Quarter, ... is very tricky. Specially in the presence of irrational rhytmhs (e.g. triplets).

Solution:

Forget about it, use MIDI ticks instead. This shouldn't impact the overall analysis anyway.

[VictorCMiraldo]

TODO:

• [x] Get a midi song and output one [(TimeSig , [Measure])] per track where Measure = [(DelayOrOffset, Duration, Pitch)]
• [x] Be able to divide this measures in their strong beat, then over all beats, then syncopes, rinse and repeat.
• [ ] Compute fractal dimensions over different subdivisions of tracks!

[VictorCMiraldo]

@irisyupingren , although points 1 and 2 have been taken care of; I am still not very happy with the final result; we should eventually rewrite our Midi -> Voice parser.

Current limitations:

1. Can only handle MIDI files split into tracks ( Type 1 MIDI files)
2. Cannot handle tempo changes, only time signature changes.
3. Can only handle MIDI files specified in ticks-per-beat measurements
4. Handling time signature changes feels flaky and fragile; I wouldn't be surprised if it just breaks.

For the purposes of our initial study, however, I think that what we have is fine; I'll go about getting the strong beats of sections and computing their fractal dimensions before my travel.