To start learning 大欢 - 如果有一天 chords, delve into these chords sequence to get the song's feel: C, D, Em, C, G, C, G, Am and Em. Set your pace at 86 BPM initially and then sync up with the song's BPM of 172. Fine-tune the capo based on your vocal range, ensuring it complements the key of G Major.