virtuous, virtuoso

Virtuous or virtuous means morally good or upright --
He endeavored to remain virtuous; he threw himself into his work when he was tempted to backslide.
His sermons about virtuous conduct were often ignored.

Virtuoso or virtuoso means an excellent or extraordinary musician, able to play the most difficult compositions --
He was considered a virtuoso at a young age, before he was thirty.
This is a virtuoso piece, of interest mainly to other musicians.

Now that you know that, you can say --
"The young piano virtuoso was virtuous, even though he found the violinist alluring."