Play-along files synthesized and contributed by Roy Sansom.  Accompaniments are at 8' pitch, so the top line will sound best on tenor, second line on great bass, etc. if available. However, a soprano or alto up will also work for the top line.

Listen to all parts
No cantus - you play soprano/alto up or tenor
No tenor - you play tenor or great bass
No contratenor - you play tenor or great bass

Listen to all parts slower
Listen to all parts slower, with metronome