To learn Helen Reddy - Summer Of 71 chords, your practice should emphasize these chord progressions: D, C, G, D, F, Db, Ab, Eb and Gb. To master the tempo, it's wise to start at 44 BPM before aiming for the song's 88 BPM. With an eye on the song's key C Major, set the capo that best suits your vocal range.