Unfortunately, no. I looked high and low for a Musicmatch-like app when I first started using Linux. XMMS is the best player we have. It is different, and it doesn't have the awesome library feature like Musicmatch but it is an excellent player. Once I got used to it , and organized my files a bit differently I grew to like it better than MMJB.
There is a Musicmatch for linux (version 7 or so) that will run under WINE, but it will likely be sluggish and isn't that easy to get working.