To add to John's good advice: if you have a choice of downloading a song in MIDI or MGU format, I recommend you first try the MGU format. Someone already took the time to enter that song into BIAB and save it. The style, key, tempo should all be reasonably correct if they did a good job.

The SGU format will also have the chords and style but not a melody (since the melody makes it a violation to copy if the song is copyrighted). You can always key in the melody yourself for such songs.

BIAB does read MIDI files (and Music XML files) but will have to 'interpret' the MIDI and it won't be as complete as if you loaded a BIAB formatted song (the MGU or SGU format).

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.