I had a few years of piano lessons when I was a kid, I can play major and minor scales and chords, and I know that songs often progress in 1/4/5 (like C/F/G or G/C/D). I don't know anything about 5ths, 7ths, 9ths, add 2s, etc. I can figure out how to play them by looking them up on YouTube
, but I don't know what they mean or how they fit into songs or chord progressions.
My goal is to learn to play musical theater accompaniment (like "For Now" from Avenue Q
and "I'm Dead" by Randy Newman
), as well as rock songs like "Miss Misery" by Elliott Smith
and "Nobody Home" by Pink Floyd
. Eventually I would like to compose.
Besides trying to figure these songs by ear and possibly getting the sheet music, how should approach learning to play? What theory do I need to know that would help me as I begin to learn?