To learn Wjsn - (우주소녀, 아이야) I-Yah chords, grasp the musical fabric of the song with this sequence - D, Bm, C, B, C, Am, B, Em and C of chords. Ease into the song by practicing at 62 BPM before reaching the track's full tempo of 124 BPM. Adjust the capo based on your vocal range and chord preference, keeping the song's key of G Major in mind.