Overview
- The series began its weekend broadcast on tvN with episodes released on the Aug. 29–30 premiere window and is available to stream on Netflix for global audiences.
- Four Hands, Two Sonatas follows two piano prodigies across a 10‑year arc, using a teacher‑assigned “four hands” duet as a central device to show how musical collaboration shapes their rivalry and bond.
- Song Kang leads the cast in his post‑military acting comeback and said he worked intensively on piano training and felt pre‑production nerves at the Aug. 25 press event.
- Jang Gyu‑ri plays Hong Jae‑in, a violist and childhood friend who defends Song Kang’s character from school bullies and figures into an early romantic triangle element.
- Early reviews and audience conversation have been largely positive, with critics praising the performances and the show’s focus on classical music, and the series positions itself as a less common, performance‑driven K‑drama that could broaden interest in classical repertoire on mainstream TV.