midi file extension not honored / misleading error message about ly2video HOT 2 OPEN

I think a better solution to this problem is to set the extension back to midi before running lilypond. Since the user doesn't see these files, it shouldn't be an issue for them.

    fSanitisedLyFile.write("#(ly:set-option 'midi-extension \"midi\")")
    fSanitisedLyFile.close()

I tested this and it worked fine.

from ly2video.

Good catch; thanks for the report. I'd be happy to accept a PR adding a naive parse for that command. Although to do it properly would require a full understanding of Scheme syntax, which realistically is just not gonna happen in this project, unfortunately.

I agree that improving the error message would be an easy and sensible first step towards handling this better. Again I'd be very happy to accept a PR doing this.

from ly2video.