To jam and learn the simple chords for Chicago - Byblos chords, practice playing Db, B, Gb, Ab, Eb, Ab, Em, Gm, F, Bb and Dm in sequence. Start with a comfortable 63 BPM and as you become proficient, aim for the song's BPM of 127. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: D Minor.