I enjoy anise-fennel-caraway tea. It doesn't taste as watery as many of the fruit-based teas and not as bitter as black tea and such. I find, it's also decent at clearing out my throat.
Peppermint tea is second place for me, for very much the same reasons. 🙃
Might be a song from Kevin MacLeod? His songs get used a lot on the YouTubs.
https://incompetech.com/music/royalty-free/music.html
When I just searched "Kevin MacLeod jazz", the first result was "Acid Trumpet", which seems like it could fit your description.