I've seen a user here that made musicbee count the number of tracks in an album, and if the number of tracks is lower than 3, no folder is created and the tracks are placed directly in the artist folder. This would make a lot of sense for my collection.
So how do I make this happen in Musicbee? my formula so far is:
You only need to add: $If(<Album Track Count><3,if true,if false) to your formula.
Using your current formula would then result in something like this:
$If(<Album Track Count><3,<Artist>\<Artist>" - "<Title>,$If(<Album Artist>=<Artist>,<Album Artist>,<Artist>)\$IsNull(<Album>,,<Album>)\$IsNull(<Disc-Track#>,, <Disc-Track#>" ")<Title>)