NOJIRA : new metadata element, MusicScore powered with Verovio 🎶

[gautiermichelin]

Hi CA team,

This is a PR for a new metadata attribute for music score. It uses the verovio lib for rendering, and actually renders partitions in Plaine and Easie format, and in ABC format.
I need to expand it to full MusicXML handling, but this is already a good step forward.

To test it, create a new metadata, with MusicScore as type, add it to the UI, and use this as a copy-paste encoded music :

{
    "clef": "G-2",
    "keysig": "xFCGD",
    "timesig": "3/8",
    "data": "'6B/{8B+(6B''E'B)}({AFD})/{6.E3G},8B-/({6'EGF})({FAG})({GEB})/4F6-"
}

You can also use text encoded variant, instead of JSON :

@clef:G-2
@keysig:xFCGD
@timesig:3/8
@data:'6B/{8B+(6B''E'B)}({AFD})/{6.E3G},8B-/({6'EGF})({FAG})({GEB})/4F6-

It's an ongoing work with the University of Torino, Italy. I've handled it through a simple text field, but this would be far more interesting when being able to render it live from Providence.

Best to each of Whirl-i-gig !

Gautier

[gautiermichelin]

Hi @collectiveaccess do you want me to make a parallel PR for Pawtucket now ? Are there things I can do to allow you to merge this PR ?