Bit of music popular and current in 2000 (5)
I believe the answer is:
minim
(Other definitions for minim that I've seen before include "Feature of a score" , "A note in music, half as long as a semi-breve- it's a palindrome" , "Two crotchets in one" , "Note with value of half a semibreve" , "note or > dose" .)