To jam and learn the simple chords for Rokkaku Seiji Band - Diesel chords, practice playing F#m, G, D, A, D, A, E, F#m, G and E in sequence. Start with a comfortable 46 BPM and as you become proficient, aim for the song's BPM of 93. Given the song's key of A Major, adjust the capo to align with your vocal range and chord preference.