For as long as I've been playing drums, I've never been able to figure out a practical purpose for the paradiddle. I really can't see where it would ever be advantageous to play a series of notes as R-L-R-R L-R-L-L instead of just alternating hands. For a particular example, why would Jerry Allison have played "Peggy Sue" as paradiddles instead of alternate strokes?
Can anybody give me some insight on this?
Something that made me finally post this question is that the "Word of the Day" on my calendar yesterday was "taradiddle", which I thought must be defined as "a drum rudiment used when playing at Scarlett O'Hara's place", but actually means "fib; or pretentious nonsense".