Beginner Ableton Questions? We all start somewhere
Note, return tracks act in parallel, meaning that even when a track’s set to send 100% to the return track, the original audio is still going to the master, meaning 100% wet is really 50% wet, 50% dry.
There are also Pre/Post buttons for sends. These buttons are located on the master track, above the master fader in session view. Post is the default. When set to Pre, the input of the return track will ignore where the fader is set on the source track that is being sent to the return track. This means that if the source track’s fader is pulled all the way down, but it still is set to send some amount of its audio to the return track, you will still hear the return track fx. When set to Post, if the source track’s fader is pulled all the way down, you won’t hear anything on the return track fx.