Unless you've got more than 24 hours worth of songs that you're reporting,
you could probably get away with simply using a Date field, and storing just
the time in there. Recognize, though, that that's not really the point of a
Date field: it's intended to store a timestamp (date and time).
The normal recommendation is to store the time in a Long Integer as a total
number of seconds. Write your own function to convert back and forth between
seconds and hh:mm:ss.