Study Blue Steps, an original piece in C (not a twelve-bar blues). Compare E flat and E natural by sound and by notation. The left hand holds open fifths on I and V (C–G, G–D) and the fourth-and-fifth F–C of IV in bars 3 and 6: learn each change alone. Play the opening right-hand C–D–E flat–D over the held C, keep the written straight quarters rather than swinging them, then join the phrase and invent a short answering phrase.