Henrytennis Is A Progressive Rock Band From Tokyo Japan. Their Musical Concept Focuses On Minimalistic Soundscapes Incorporating Mainly Live Instruments. The Band's Current Lineup Consists Of Yoshihito Okumura Guitar Vocals Mami Matsuzaka Keyboard Organ Vocals Yoshinari Kishida Drums Takeshi Horikoshi Bass And Shou Matsuzawa Glockenspiel Synthesizer .