Ah, that's a point. Forgot about the 5% of
copyright material rule.
HOWEVER, I believe in music isn't the track as well as the entire
recording under copyright? i.e., you could only take 5% of a track?
There is no such thing as a "5%" rule in American law. Fair use
is judged on a combination of subjective factors, all of which we
should meet easily here.
The most important is that the quoting should be done 'for evalution
purposes', that is, to give the reader or listener the chance to evaluate
the work as a whole by.
Regarding popular music, a few years ago I looked around on the Internet
and found remarkably many parts of 26-30 seconds length, so I assume that
30 seconds has been taken as the maximum length of 'fair use' for this kind
of material.
Andre Engels