Here's my problem:
If you cloned Mozart, would the clone be a great musician?
Depends of your cloning method... ;) (I guess I really go SiFi now here!)
If it is like in AOTC, where the clone starts from babies to adult, you'll need to teach them the specific skills you want them to have. But if your cloning method can duplicate a person to another identical one (same age, same body, same brain), then maybe you could make Mozart number 2.