To jam and learn 群星 - 明天會更好 chords, your primary focus should be mastering these chords sequence: G, C, E, F, Am, E, Gb and B. Start with a comfortable 74 BPM and as you become proficient, aim for the song's BPM of 149. Tune your capo to accommodate your vocal range, referencing the song's key: Db Major.
