“Harmonia” (ハルモニア?) is Rythem’s debut single which was released on May 21, 2003 under Sony Music Entertainment Japan. The title track was used as the second ending theme for the anime series Naruto. The single peaked at number 29 in the Oricon weekly charts making it their first single to reach Top 30 weekly charts. Catalog Number AICL-1673 Track listing: 1 Harmonia 2 Tenkyu 3 Harmonia (Saboten ver.) 4 Harmonia (instrumental) Composition/Lyrics: Rythem Arrangement: CHOKKAKU