How the fuck has no one said Dearly Beloved from Kingdom Hearts yet?
There are a number of other tracks from the first 2 games that are really relaxing, too, but tracking them down is a bit of a difficulty.
Also- There is a really relaxing track from Crusader Kings 2 that I cannot fucking find anywhere and that really pisses me off. Song is relaxing as shit. Paradox released the game's full soundtrack on there youtube channel, so I'll try to browse through that and find it there.
EDIT: Found it, Horns of Hattin and Aftermath, specifically the aftermath movement beginning around the 1 and a half minute mark, song has a pretty unrelaxing opening, though.
You're fucking welcome.
Also- There is a really relaxing track from Crusader Kings 2 that I cannot fucking find anywhere and that really pisses me off. Song is relaxing as shit. Paradox released the game's full soundtrack on there youtube channel, so I'll try to browse through that and find it there.
EDIT: Found it, Horns of Hattin and Aftermath, specifically the aftermath movement beginning around the 1 and a half minute mark, song has a pretty unrelaxing opening, though.