To jam and learn 許冠傑 - 滄海一聲笑 chords, your primary focus should be mastering these chords sequence: Bbm, Fm, Bbm, Fm, Ab and Fm. Start with a comfortable 65 BPM and as you become proficient, aim for the song's BPM of 130. With an eye on the song's key F Minor, set the capo that best suits your vocal range.