To jam and learn Udit Narayan, Lata Mangeshkar - (Happy) Aawaz Do Humko chords, your primary focus should be mastering these chords sequence: N, D, G and D. Kick off your practice at a gentle 65 BPM, then escalate to the song's tempo of 131 BPM. Set the capo considering your vocal range and favored chords, aligned with the key: D Major.