[11.Etenraku ~Solo Guitar version~ : This song is arranged as a solo guitar etude from the representative Gagaku song which is the oldest orchestra in the world that has a history over 1200 years coming from China. The eight figure groove, which “Gagaku” has and “Ma (the space)” appears towards the first beat and the third beat. The sense of the speed and impact of the note on the first beat from “Ma (the space)” has same energy as the “On the one” that the Black Music has. The “Nagashi” technique which “Kakko” drum weaves “Ma (the space)” amplifies the energy of the groove as if a bow strongly extended. Atsumi feels an infinite possibility from this groove and uplifting. Those elements were represented deeply as much as possible by the solo guitar. After the Meiji era, the actual tempo of “Gagaku” songs slowed down but Atsumi feels a great speed on the other hand. This feeling also is expressed by this arrangement. “Hichiriki” which carries the main melody is the symbol of the 'Human voice,' and the bass note of guitar plays its melody. “Ryuteki” which plays the other melody represents 'Dragon,' and its played with the high note of the guitar. He expressed the light of the guitar, which does not have “Sho” which symbolizes 'Diffusing lights.']