Let's start jamming 許冠傑 - (電影半斤八兩歌曲) 半斤八兩 chords, practice the chord sequence C, D, G, Em, C, D, Em, G, Bm and Em. For best results, commence at 61 BPM and progress to the song's BPM of 123. Set the capo considering your vocal range and favored chords, aligned with the key: C Major.