There are many pleasant-sounding things in the Mass Effect games, but none of them close to the level of pleasant than the sounds of its galaxy map music. The galaxy map is your path to explore the games expansive galaxy, and the size of that galaxy is overwhelming; the farthest corners visible but not yet within reach due to fuel or relay constraints.
As you engage your map the chatter on-board the Normandy slowly fades. Cue the pleasant-sounding things.
Mass Effect 2 Galaxy Theme:
Mass Effect Andromeda Galaxy Theme:
I had never assumed saving the world would be easy. In fact, there were countless points throughout the games where we were basically guaranteed we would fail. In between these times of frustration and the general fear of failure, the galaxy map music represented a much-need, perpetual sense of optimism.