What is the fine-grained topic of the following text: Like fellow Memphis jazz artists George Coleman, Booker Little, and Frank Strozier, Mabern attended Manassas High School, and after an early attempt at playing the drums, he taught himself piano and fell under the spell of pianist Phineas Newborn Jr., an influence that would shape and linger with Mabern for the rest of his life. Only return the topic.
Mabern's early life and musical influences