I want my language, Syn, to be as precise, efficient, unambiguous, and aesthetic as humanely possible. To do that, I think even the texture, dynamics, rhythm, and the likes should be accounted for.

As far as I know, only Mandarin incorporates changes in intonation corresponding with a different meaning of the same spoken word, but even that can be hard to notice for non-speakers.

Are there any other languages that incorporte musical concepts?

If there are, how did people manage to use those concepts?

If there are none yet, will such a language possess an added difficulty when speaking it?

I imagine that the native speakers of Syn would be naturally adept in tone recognition, and every conversation would seem like an a capella get-together.