Virtuoso
/ˌvɜːrtʃuˈoʊzoʊ/ noun easyA person with exceptional skill in a particular art, especially music.
The young violinist played like a virtuoso, drawing a standing ovation from the entire hall.
Memory Trick
Virtuoso comes from the same root as 'virtue,' which originally meant excellence or skill -- a virtuoso has pushed that skill all the way to pure excellence.