By no means, though, do I expect any aspect of law school to be "easy" (in the sense that, say, an undergraduate survey course on music history is "easy"). Anyone who believs this is likely going to have a very hard time in LS until they reconsider.
Ok, not upset about the music course comment, those misconceptions are all over, but take it from someone who has a BM and MM, music is by no means easy. In fact, from what I have heard, a music degree is very similar to a JD in that there is a lot of busywork that requires analytical and reasoning skills(anyone who has taken a music theory course can attest to that).
The time commitment issue sounds like a breeze compared to what I was doing during my Graduate work. The reading, rehearsals, teaching, working, and performing almost killed me...and the reading definitely left much to be desired.