Ikimono Gakari before kiyoe...

Musical style

Ikimono-gakari's musical style stems from their original lounge rock style found on their first indie albums. Their primary instruments were the acoustic guitar, the electric guitar, and the harmonica. Their indie music was considerably slower; "Natsu Koi" on Sakura Saku Machi Monogatari is considerably faster in tempo compared to the same song on Makoto ni Senetsu Nagara First Album wo Koshirae Mashita.... Guitarist and band leader Yoshiki Mizuno also sang considerably more on their indie albums.

With the release of their first major-label album, Sakura Saku Machi Monogatari, their style changed to a more conventional rock style, but still keeping with their traditional guitar-harmonica combination. They also began to add other elements to their songs, such as strings and tambourines, as evidenced by "Sakura" and "Kira Kira Train". They also began to songs with faster tempo, such as "Ryūsei Miracle" and "Hinageshi".

With their second and third albums, Life Album and My Song Your Song, Ikimono-gakari then began to shift to a more mainstream pop sound. Songs like "Kimagure Romantic" differed greatly from their songs during the Sakura Saku era. Life Album saw the revival of a couple of songs from their indie albums; "Hana wa Sakura Kimi wa Utsukushi" from Makoto ni Senetsu... and "Chikoku Shichau yo" from Jinsei Sugoroku Dabe. "Kuchidzuke", also from Jinsei Sugoroku Dabe. was revived on My Song Your Song.