To learn 新乐尘符 - 123我爱你 chords, your first step should be understanding these chords - B, C#, D#m, B, C#, F#, B and F# in sequence. Adjust your pace with the tempo control on ChordU, starting slowly and speeding up progressively. Fine-tune the capo based on your vocal range, ensuring it complements the key of F# Major.