Note: “D.S. al fine” means “go back to the sign and then play until the end”, i.e. when you get to the end of bar 44 go back to bar 2, where the sign is, and then play all the way through to the end of bar 43, where you then jump to bar 45. Repeat bars 25-32 both times. The fingering follows the practice of using your 5th finger for white-note octaves but your 4th for black-note ones.