Cross fade from music files would be good
Thanks for checking out Rush!
You can apply transitions to an audio clip in Rush today.
1. Select an audio clip in the timeline,
2. Open the Transitions Inspector, select the Cross Dissolve transition
This will apply a transition to the beginning and end of your selected clip. If you want to apply a transition to only one side of the clip, you can drag and drop the transition to the desired position.
We're thinking of ways how we can make this more clear to users in the future. We would love to hear your ideas on how you'd expect/like this to work.