Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
I'll start with a quote from the official Songbird homepage, which goes like 'Songbird promises to be the Firefox of media players'. Although not (yet) as popular in the audio players world as Firefox is in the one of web browsers, Songbird looks and offers an interface which integrates both powerful browsing features and music collection management.
Interface and usability
The first thing that strikes compared to the previous version is the interface, called Gonzo, which is now metal grey instead of black.
As I already said, Songbird provides not only an audio player, but an integrated web browser too, which is based on Mozilla Firefox, and it even provides the well-known about:config configuration variables together with a preferences dialogue which offers the same options as Firefox does.