According to YAMYAM Entertainment, the OST production company for "Our Blues," the OST "By My Side" sung by Taeyeon will be released as "Our Blues OST Part. 6," on all major music sites on May 8, 6PM KST.
"By My Side," is a song accompanied by an orchestra that starts with lyrical guitar melody that threads throughout the song. Coupled with Taeyeon's emotional voice, the song gives off a sentimental feeling of warm sunset and blowing wind.
Check out the teaser for "By My Side" below.