Almost completely unknown in the west, Masahiro Sugaya has been composing and producing music since the 1980s in an exceptionally wide range of fields and practices. From arrangements for musical acts like the acoustic guitar duo Gontiti to acousmatic diffusion at spaces like Paris’s Groupe de Recherches Musicales (GRM), Sugaya’s reach is almost exhaustive in its breadth, but it was in the 80s bubble-era kankyō ongaku scene that he first found his musical voice. Horizon, Volume 1 presents a window into these works, culled from Sugaya’s early scores for experimental Tokyo theatre group Pappa Tarahumura.