Rochester music is a rather voluminous major at 63-73 credits.
http://www.sas.rochester.edu/mur/undergraduate/requirements.html
Rochester biology looks like it requires 64-68 credits.
http://www.sas.rochester.edu/bio/undergraduate/bio.html
The general education requirement of a cluster in social sciences needs another 12 credits, and the required English composition course requires another 4 credits (or 8 credits if another one is needed and writing courses within the biology major are not accepted). If there are no approved clusters covering all of the pre-med social science courses, these also need to be added. The biology major does not include the second semester of physics or organic chemistry needed for pre-med purposes, so another 8 credits are needed for those.
So the total would be 151 credits or more, when normal course loads of 16 credits per semester for 8 semesters gives 128 credits.
It will probably be easier to squeeze it all in by doing music + pre-med courses, but not the entire biology major. Even so, that would be a tight fit without overloading.