To learn Imogen Heap - Aha chords, your first step should be understanding these chords - Bbm, F, Fm, C, Db, Bbm, C, F, C and Fm in sequence. Begin your practice at a relaxed 59 BPM, then work your way up to the song's BPM of 118. Tune your capo to accommodate your vocal range, referencing the song's key: F Minor.