To jam and learn Patsy Cline - Crazy chords, your primary focus should be mastering these chords sequence: Cm, G, Cm, F, Bb, Eb, Dm, Cm, E, Ebm, Dbm, Ab and Dbm. To master the tempo, it's wise to start at 71 BPM before aiming for the song's 143 BPM. With Bb Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.