So, an update here .. I started on this like an hour ago and just finished. Well, finished for today!
My foobar was getting a bit heavy and I want a liter version which is still not lite but not quite as demanding as the other one I've made. My plan is actually to make a few different ones and have several installs on this external HD I'm gonna buy soon which I'll keep my music on. Anyways, what I've made the last hour (copying and pasting a lot from the old of course) is this ..
The main way I access my library is actually by searching and the search bar is in the top right corner. Just above the playlist area, I have tabs which shows different things, like mixed artists compilations or soundtracks.
At the bottom, you have some fairly simple things. A progress bar on the left, buttons in the middle and a rather large volume slider on the right.
Haven't tested it much so still not sure how I like it yet, but I think it'll be good.