Quodlibet is a GTK+ audio library manager / player. In Debian, it makes up four binary packages: quodlibet, quodlibet-ext, exfalso, and quodlibet-plugins. It's big/popular enough to get a few bugs filed against it and for people to yell when things break, but not so big as to be overwhelming.
Since the previous comaintainer has been inactive for some time, I've been thinking that it might be nice to have a comaintainer again. During my academic term at MIT or if I'm on vacation, I don't get to things as quickly as I should. The package has also gone through a period of inactive Debian maintainers and a period of inactive upstream maintainers, so it's accumulated a fair number of ignored bugs in the BTS. And in general, having others to fall back on is a good thing, as long as it doesn't lead to no one taking responsibility.
So, here's a deal: I want a comaintainer. There's a catch, though: this person doesn't need to be already involved in Debian. In fact, I'd prefer it if she weren't. If you have a good grasp on the English language, enthusiasm for Debian, and a willingness to learn some technical skills, contact me, preferably via email, and let me know who you are. Quodlibet is written in python, but I'm explicitly not saying that you need to know python in order to help out. You'll gain the benefit of having someone willing to answer your questions and direct your efforts and an automatic sponsor for uploads you prepare.
I can't say I have a ton of time to put into mentoring someone, but I'm willing to put in some, so hopefully such an arrangement will turn out well for all parties involved: you, me, upstream, and Debian.