To learn The Cox Family - (From O Brother, Where Art Thou Soundtrack, Let Me Rest) I Am Weary chords, these are the chords to practise in sequence: Eb, Bb, Eb, Ab, Eb, Bb and Ab. For a smooth transition, initiate your practice at 58 BPM and gradually match the song's pace of 116 BPM. To match your vocal range and chord inclination, adjust the capo in line with the key: Eb Major.