How to change the ringtone and use your favorite song as ringtone on Android 5.0 Lollipop (Nexus 4, 5, 6 and 9 tutorial)
Just going into the ringtone folder is not a solution since Google is not providing you with an easy way to add new custom ringtones from there. Fear not - the whole process is actually not complicated at all.
It takes a bit more fiddling, but in the end if you have your favorite music file at hand, it should not take more than a couple of minute. Take a look at the slideshow below where we guide you through the process of changing your ringtone to that favorite tune of yours.
Note that this Android 5.0 Lollipop tutorial will work on all stock and near-stock devices including the Nexus 5, Nexus 6, Nexus 9, etc.