HΛL is formed as a production group.
G&K. Atsushi Sato (佐藤あつし) / G&K. Toshiharu Umezaki (梅崎俊春)
V. HΛLNA / G&K. Atsushi Sato (佐藤あつし) / G&K. Toshiharu Umezaki (梅崎俊春)
HΛL release their first single “DECIDE”, which is a moderate success, reaching number 27 on the Oricon charts.
HΛL release their first full length album “Violation of the rules”, which reaches number 8 on the Oricon charts, becoming their best selling release to date.
Vo. HΛLNA and Gt./Key. 佐藤あつし both leave HΛL, both disintegrating the recording project, as well as making it the sole project of Gt./Key. 梅崎俊春
HΛL goes on as a production project of Gt./Key. 梅崎俊春, with Gt. 清水武仁 and Key. 中野雄太 joining.
G&K. Toshiharu Umezaki (梅崎俊春) / G. Takehito Shimizu (清水武仁) / K. Yuta Nakano (中野雄太)
Key. 中野雄太 leaves, and Key. 丸山真由子 joins.
Gt. 清水武仁 and Key. 丸山真由子 both leave HΛL.
HΛL disbands
HΛL was a non-vkei band. They were active from 1996 to 2011 and are now disbanded.