マーチ・ブルースカイ（2024）（金管８重奏 完全版）

In the 2007 Brass Band Competition assignment piece, Kosei's music was returned to its original form by including weak movements, adding partial inner voices, changing the orchestration, and untying the constraints of the range setting at the time of selection. The orchestration is a brass octet, and the percussion instruments are listed as they are, but the drum set part is also listed.