It very well could be that the MIDi file you've found does not really have a MIDI Tempo map imbedded in it. This kind of thing is common when using free downloaded MIDI files, likely the person who created the file simply left the Tempo at 120 default and then proceeded to play a MIDI keyboard and record parts, ignoring the MIDI Tempo, bars and even the Key Signature.

This is a common problem with free downloaded MIDI files.

Sometimes you can go in there and "repair" everything tediously, sometimes not.

Sometimes it is just plain easier to go searching for another MIDI file of the same song.


--Mac