To learn 山口百恵 - 春風のいたずら chords, grasp the musical fabric of the song with this sequence - Cm, Gm, Cm, Gm, D, Eb, Gm, F, Cm, D and Gm of chords. I suggest starting at a calm pace of 62 BPM, and as you gain confidence, approach the song's BPM of 125. Adapt the capo setting considering your vocal range, with reference to the key: G Minor.