by nathf on Thu Jun 22, 2006 2:53 pm
Gotta be the concerto. Its overall less repetitive, and has just so much variation and changes of motif. Every few bars (not always, but you know what I mean) the style used/motif changes - and those runs are hell frustrating. I gave up after about a hard months practice (I usually don't give up at things but that is one tough piece...)