I haven't tried the ceolas soucre that Barry has given but certainly feel that utilities to convert between ABC and MIDI are "essential" tools and are well worth seeking out.

Here is an ABC conversion from the MIDI in the DT:

Jon

---------------------- X: 1 T: M: 4/4 L: 1/8 Q:1/4=50 N: Last note suggests Mixolydian mode tune K:D E2 E3/2F/2 EF AB/2c/2|dc BA F G2 G/2B/2A/2G ce e3/2f/2 fe dc|ec BA F ce e3/2f/2 fe dc|ec BA F