I'll be sure to keep a lookout then!
I'm not sure exactly about MuseScore but I'm pretty sure you can convert sheet pdfs you have into a supported type file on the site? Though I never ended up posting anything myself. In any case, playing by ear is also quite enjoyable. Embarrassed as I am to admit I know a ton already just by the frequent listening >.>
Viewing post in Dawn Chorus soundtrack vol.1 comments
you can import midi's straight to musescore (https://musescore.org/en/handbook/3/midi-import), sadly im no music expert so cant help with transcribing the other ones, but if anyone is PLEASE T_T