There is no information I want to find in this site. Only ABC, for example:

There are three types of Standard MIDI Files, that include: Type 0 - which combines all the tracks or staves in to a single track. Type 1 - saves the files as separate tracks or staves for a complete score with the tempo and time signature information only included in the first track. Type 2 - saves the file as separate tracks or staves and also includes the tempo and time signatures for each track.

But I want more...