Watch Band Four (2023) HD Full Movie Free on solarmovie.do. Watch Band Four (2023) online free. After years of no contact, a reunited family struggle to form a bond, however, they all soon realize...After years of no contact, a reunited family struggle to form a bond, however, they all soon realize they share a passion for music. A passion that Cat passed onto her son, the nine-year-old Riley who is an incredibly gifted drummer.