The A-side "Litmus" is a polished, horn-inflected pop-rock tune that showcases Haruko's vocal versatility, while the B-side "Iyo-iyo" offers a more subdued, jazz-tinged ballad.
- "Litmus" was released on August 25, 2021, by Sony Music Labels Inc.
- The single was serviced to Japanese radio stations in late August 2021.
- The release charted at number 96 on the Billboard Japan Hot 100 chart.
Ryokuoushoku Shakai are a Japanese alternative rock band formed in 2012. The band consists of Haruko (vocals), Issei (guitar), Shigeru (bass), and Tomoaki (drums). They are known for their blend of alternative rock, pop, and jazz influences. In 2021, Ryokuoushoku Shakai were at a peak in their career, with multiple hits and a growing international fanbase. This single release followed their successful third album "Coat".
Tracklist
