オルドコデックス

OLDCODEX was a Japanese rock band from Tokyo, Japan, formed in 2009.

On August 4, 2021, Ta_2 announced he was going on hiatus, with Oldcodex subsequently pausing their activities as well. On December 27, 2021, it was announced that Oldcodex was set to disband following the release of the theme song for the upcoming Free! movie on the original soundtrack album which is scheduled for April 2022. They officially disbanded on May 31, 2022.

Members:
- Vocal: Ta_2 (Tatsuhisa Suzuki)
- Painter, Lyrics: YORKE
- Drums: Ryo Yamagata
- Bass Guitar: Taizo Nakamura
- Guitar: Shinji Oomura


In February 15, 2010, YoHsKE and sae left the band.
In November 1, 2010, YORKE. who is responsible for the artworks became an official member.
In October 15, 2012, R・O・N left the band.