I downloaded a MIDI file from the internet and loaded into a music notation program. After editing it, I saved it as a midi file. It is a piano midi file (Treble clef and Bass clef). When I import it into ACID 9, it only imports the bass clef. It is a Type 1 midi file. I did the tutorial on importing Midi files, and it makes no mention of having to do anything special to import both clefs. Not sure if both clefs are on one track or separate tracks. Usually both clefs are on one track because it is played by one instrument (Piano). When I load the midi file into Music Maker it loads and plays both clefs, so it is an ACID 9 issue.
Thanks for your help