Early in my marriage I subscribed to the ridiculous notion I could mould my wife into a clone of me (conceit, narcissism?), and I actually successfully persuaded her to do a little bit of piano improvisation at least improvising with one hand over a chord progression I provided. She has an excellent ear for music and melody and did a really good job. However, she's a different person from me with her own interests and hobbies (even though aesthetically they intersect on many levels so we're quite compatible), so I stopped pushing so much.