I stared a thread about changing the tunes on my pro a while back...
https://pinside.com/pinball/forum/topic/mustang-pinball-music
I'm interested in hearing about how the browser works out on the LE too. On the Pro, there's 4 songs and 3 (what I call) generic techno boogie tunes that can be replaced with songs for a total of 7 songs. I wonder if there's any spots in the LE where an extra song would work?
The extra shorter song clips are used in different parts of the game. For example, between balls while the ball is waiting to be plunged, a short clip of the song will loop. What I've found is when adding songs, you'll put it in the longest time spot for that song. Then It'll fill in the shorter spots automatically. Problem is, these shorter loops sometimes don't loop perfectly... But that's the way it goes.
Also as I've mentioned in my other post, there's a lot of trial & error involved to get it "right". I found that what seems like a good song to use falls flat when installed in the game.
Makes you appreciate how much work goes into creating the sound clips for a Pinball Machine!