OLDCODEX

OLDCODEX (オルドコデックス ORUDOKODEKKUSU) is a Japanese rock band that was formed in 2009 in Tokyo, Japan. They frequently perform theme songs for the Free! series.

Overview
The band has released a total of six studio albums, three extended plays and eighteen singles. They have performed the opening themes for the Free! series since the first season, the ending theme of the High☆Speed！－Free! Starting Days－ movie, and the theme song for Free!–the Final Stroke– Kouhen.

The rock band also produces and performs songs for other well-known anime series such as THE BASKETBALL WHICH KUROKO PLAYS., God Eater and SERVAMP. They are known for performing the theme songs for anime series in which their lead singer, Tatsuhisa Suzuki, also provides the voice acting for one of the characters.

On December 27th, 2021, it was announced via the bands official website and Twitter that they would be disbanding in April, 2022, with the theme song for Free!–the Final Stroke– Kouhen being their final musical release.

Members

 * Ta_2 (AKA Tatsuhisa Suzuki )
 * YORKE.

Etymology
The name of the band was created by combining the words “OLD” and “CODEX”, the former meaning "of old age or the past" and the latter meaning “manuscripts, such as the Bible.”

Trivia

 * OLDCODEX's previous guitarist, R•O•N, is also a prolific composer and has composed and/or arranged several character songs featured in the Free! series, including: Ao no Kanata, Break Our Balance, and Over the Dream.