Hi everyone! I'd like to know how to say this. I'm talking about a singer's voice which sounds the best in a certain register. As you might know, when classifying someone's voice, you don't guide yourself by how high or low the person can reach but where it sounds better, nicer, where his/her voice "luce". The thing is, I've already used "his voice shines", so I need a sinonym I can use in this context. Something that conveys this idea of sounding or looking the best. Thank you very much!