If I just want to preview an SMF I'll use the shareware QMidi (buggy and stupid but it's enough for previewing and it will display Karaoke lyrics). My workhorse MIDI editor is Metro, by Sagan Technologies. It plays SMFs with ease, either through the MIDI port or via AppleDLS and lets me edit anything I want. (Metro was bought by Cakewalk years ago and became Cakewalk for Mac; it was later returned to the original developer who now maintains it as a Mac-only product.)

IMHO, the DLS (QuickTime) sounds are pretty awful; if I'm rendering anything to audio I play it through my external keyboard and use Audio Hijack Pro to record the results.


Stephanie