To jam and learn 李克勤 - 夢少年 chords, your primary focus should be mastering these chords sequence: Dm, E, Am, Cm, Bm, Em, D, G, C, B, C, Am and Bm. Start slow with ChordU's Free Tempo controller and increase your speed as you get comfortable. Fine-tune the capo based on your vocal range, ensuring it complements the key of G Major.