Drummer/composer Masashi Takashima moved from Fukushima Prefecture to Tokyo in 2018, and since then his expanding musical activity has gained further momentum. After relocating, he invited musicians Madoka Kouno (tape recorders, mixer, speakers), Masahide Tokunaga (alto saxophone) and Yuma Takeshita (modified bass guitar) to perform his own compositions. A quartet made up of these three plus Takashima on drums and electronics performed a concert of four compositions by Takashima (each about 10 minutes) at Ftarri, Tokyo, on August 19, 2018. "Hubble Deep Fields" is a live recording of that concert. Based on rule setting and instructions by means of staff notation, text and graphics, the performances have a meticulous structure as well as an abundance of improvisational elements. What's more, despite the fact that they're discrete compositions, there's an exquisite feeling of continuity running through all the pieces. It's as if we were hearing a single four-movement composition. This remarkable album clearly demonstrates Takashima's gifts as a composer, as well as the artistry of the four musicians.