We are beyond the concept of a library of static loops.
This site allows you to choose the content of the music for your game and also set up its behavior. Our engine's SDK brings adaptive music to your game within minutes!
This video shows you step by step how to utilize welove.audio Engine for a quick implementation of adaptive music in your game: Music project creation, music structure definition, searching our catalog, downloading the music, and using the API in a Unity project. Have fun!
Additional information on our wiki: https://help.welove.audio