musicxml-grooves.js

[infojunkie]

This cli tool runs through all MMA grooves, and converts them to MusicXML. In conjunction with the groove to MIDI generation API /groove, we can now have a Web-based drum machine that works with the existing musicxml-player technology.

[infojunkie]

Missing:

• Some MIDI drum voices are missing in drums.xml
• Some advanced beat timing detection such as triplets and swing are missing in getNoteTiming()
• Tests

[infojunkie]

Here's the latest progress. This file was exported by musicxml-grooves and imported by MuseScore (3.6, because 4.x has broken MusicXML import) without a validation complaint.

As per the attached log, a number of cases remain to be handled. I think the trickiest is to deal with articulated notes that are shorter than their scored notation, such as staccato.

[infojunkie]

Getting close... Here's a highly jittered groove, first manually quantized:

And now automatically quantized against a grid of 16th notes + 8th triplets:

[infojunkie]

Latest progress in quantization using a (4, 3) grid with optional beat dashed lines on:

For reference, here's how MuseScore imports the corresponding MIDI file: