Jacob Kohler (piano)

Born in Phoenix, Arizona, USA.By the time he entered high school, he won over ten classical piano competitions, including the Arizona Yamaha Piano Competition. In 10, she was selected as one of the finalists of "COLE PORTER JAZZ PIANO FELLOWSHIP". After coming to Japan in 2007, she has been active as a jazz pianist, such as backing for TOKU.In the same year, she released "STARS", a collection of famous songs related to the stars and the moon. In 2009, she won the TV Asahi's popular TV program "Kanjani's Sorting ∞ ``Piano King Decision Battle''". As of June 2010, the number of subscribers to the YouTube Jacob Koller/The Mad Arranger channel has exceeded 4, and the number of subscribers to the Jacob Koller Japan channel has exceeded 2015.

Zak Kroxall (bass)

Bassist from Connecticut, USA.He started playing electric bass and wood bass in high school and graduated from Berklee College of Music in Boston, Massachusetts in 2008.He then traveled to New York to play music in a wide variety of genres, including appearances at world-famous Blue Note NY, 55 Bar and BB King's. In 2011, he was in charge of the opening theme bass for TV Asahi's "Hodo Station", and performed in the program.Seeking a new world, he moved to Japan in 2016. He has earned the trust of many musicians who are active overseas, including pop artists such as C&K and Hiroko Shimabukuro, as well as R&B singer Nao Yoshioka, and is actively working in Japan.

Masahiko Osaka (drums)

In 1986, he won a scholarship to study at Berklee College of Music.While in school, he joined Delfiyo Marsalis' band and performed at jazz festivals all over the United States. He returned to Japan in 1990 after working in NY.He formed the Masahiko Osaka and Tomonao Hara Quintet.He released 6 of his albums.Two of his albums were selected as gold discs by Swing Journal magazine.On the other hand, he has released 2 albums with Jazz Networks, a Japanese-American mixed band.He has participated in over 4 jazz albums as a sideman. Since 100 he has been a part-time lecturer at Senzoku Gakuen College of Music, and in 1996 he became a visiting professor.He is a Japan Sommelier Association certified wine expert.