Music XML import

[stephband]

https://www.musicxml.com/

Potential for inter-op with Sibelius and the like.

[edknittel]

I've not looked deeply into this, but there's already a JS library that supports converting Music XML to ABC called xml2abc-js https://wim.vree.org/js/xml2abc-js_index.html

[stephband]

Thanks for this. My internal representation is not ABC, so that would mean two steps to get the data: parse the XML to ABC, parse the ABC to Sequence data, which seems a bit silly, but it might be worth hacking it together to see hoe well it copes.