To start learning 山口百恵 - ひと夏の経験 chords, centre your learning around these elemetal chords sequence: Gm, Eb, D, G, F, G, Bb and Cm. Start with a comfortable 76 BPM and as you become proficient, aim for the song's BPM of 153. To match your vocal range and chord inclination, adjust the capo in line with the key: Bb Major.