Calm with a beat. "Aer Noctis" is Latin for "Night Air" (or "Air of the Night").
The discussion at < https://github.com/LMMS/lmms/issues/1693 > highlights a desire for public-domain music made with LMMS. This is the Apertae collection ("Apertae" is Latin for "open"). All songs in the Apertae collection are dedicated to the public domain under CC0 < http://creativecommons.org/publicdomain/zero/1.0/ >.
This is a slightly modified version of a previously released song (available on SoundCloud). Because there is little difference between the two, the original is in the public domain as well.