I'm working on a Window Maker dockapp.
It is a mpd client that shows the album art on the dock and has a few controller features.
Here's a vid: https://ttm.sh/q3O.webm
Although I'm testing it on Window Maker, I'm gonna use it on my wm, which also supports dockapps.

I wrote it after getting annoyed by notifications popping up everytime the song changes using my old notification daemon, xnotify. It's more discreet, and stays on the dock, not annoying me.
I wrote xnotify back when thinking that notifications are a cool feature and that my dbusless desktop need some. But them I realized that desktop notifications suck.
Smartphone notifications also suck.

I removed xnotify from my xinitrc. I don't know if I'll keep maintaining it.