At the moment this one. Especially once it hits 3:34
I like relaxing trance music that actually has "feeling".
I especially like it when it's mixed with other genres (like opera in this case).
Having said that, I also have a wide variety of mysic that I enjoy that includes
Ray Charles
Ninna Simone
High Contrast (DnB)
Coldplay
Rammstein
....and a lot of other bands.