another music files support (read / open / import / export)

[sugizo]

imagine user have music sheet
and
want to play it on guitar using tux guitar

nice to have another music files support
like to read / open / import / export

in a format of
musescore (.mcsz)
lilypond (.ly)
musicxml (.xml, .musicxml)
jianpu (.txt)
abc notation (.abc)
mei (.mei)
hum or humdrum (.krn)
plaine and easie (*.txt, *.json, *.pae)

thanks and best regards