Upon hearing that her favourite pianist - Andre Gauthier-Lee - is retiring, Gaby decides to travel around the world to Singapore, Auckland, Geneva, and New York to watch his last four concerts. Little does she know that this trip is going to change her life forever.

Andre Gauthier-Lee's life as a world-renowned pianist seems to be perfect. However, his recent retirement announcement has shocked his fans, as he is in the prime years of what seemed to be a thriving career. What secret is Andre hiding? Is his life not as perfect as it appears?

Through Gaby and Andre's journeys, Romance Concerto explores romance, friendship, and the dedication to music that brings people together.