Trout doesn't have some of the flexibility of foobar for certain superficial things I like. I do use Trout for my sample drum looper when I practice piano.
At one point, I had everything blanked out, but then there were too many results in my searches because it searched all the fields and it wasn't effective in filtering the list at all. my filter is almost perfect right now: artist, album, title. i just need a way to add filename to it.
I don't understand why foobar has so much documentation and power under the hood, a very active community...and every time I have a simple question, it's not there. I don't get it.