The file directory for the in game ambient music.

Hi summoners,

Where do you find the in game ambient music for all the maps? (like the background music for Summoner's Rift, The Howling Abyss, The Twisted Treeline, and The Crystal Scar)

I have found the login and champion select music at \League of Legends\RADS\projects\lol_air_client\releases\0.0.1.71\deploy\assets\sounds\ambient

but not the actual in game music.