Yūji Koseki

{{Infobox musical artist

| name = Yūji Koseki

| image = 古関裕而.jpg

| caption =

| background = non_vocal_instrumentalist

| native_name = 古関裕而

| birth_name = Yūji Koseki

| alias =

| birth_date = {{birth date|1909|08|11}}

| death_date = {{Death date and age|1989|08|18|1909|08|11}}

| origin = Fukushima City, Fukushima Prefecture, Japan

| instrument =

| genre = Ryūkōka, gunka, march, fight song, film score

| occupation = Composer

| years_active = 1930–1989

| label =

| associated_acts =

| website =

}}

{{nihongo|Yūji Koseki|古関裕而|Koseki Yūji|August 11, 1909 – August 18, 1989}} was a Japanese ryūkōka, gunka, march, fight song and film score composer. His real name was also Yūji Koseki, but its kanji was 古關勇治.

Career

Koseki entered Nippon Columbia in 1930. He composed Hanshin Tigers' song "Rokko Oroshi" in 1936. His famous military song titled {{nihongo|"Roei no Uta"|露営の歌|lit. "The Song of The Camp"}} was released in 1937. Famous songs composed by him included "The Bells of Nagasaki" and "Mothra's song".{{cite web|url=https://www.amazon.co.jp/dp/B00005EP2Z|script-title=ja:古関裕而歌曲集/長崎の鐘~新しき朝の|publisher=Amazon.co.jp|access-date=2009-04-12|language=ja}} Ichiro Fujiyama sang "The Bells of Nagasaki" in 1949. "Mothra's song", sung by The Peanuts, was used in the 1961 movie Mothra.{{cite web|url=http://www.jbook.co.jp/p/p.aspx/70157/s|script-title=ja:決定版モスラ～モスラ・ソング・ザ・ベスト～|publisher=Bunkyodo|access-date=2009-04-12|language=ja}} "Olympic March" in 1964. He also arranged "Olympic Hymn" for Orchestra.