Let's start jamming Justice Der - 90210 chords, Practice these chords sequence - Gm, Am, Bm, C, Dm, Gm, Am, Bb, C and Am. A strategic approach would be to train at 63 BPM initially, and then accelerate to the song's tempo of 126. Set the capo considering your vocal range and favored chords, aligned with the key: G Major.