name: mpDris2 (sometimes styled mpdris2)
Useful tool that integrates mpd (the music player daemon, already in repos) with Desktop Environment media buttons through the mpris2 protocol. Makes it available in Raven or a plasma widget., with configurable notification support Album art can also be included.
It's open source!
I am having issues finding an archive of the latest release, the ftp server appears to be not loading properly, but it should be at http://mpdris2.patapon.info/latest/
Since a versioned source tarball could not be located, here's a link again to their github: