PG Music has announced that Band-in-a-Box 2011 for Macintosh is now available. They're offering deals on First-time and Upgrade packages, as well as a free Bonus 10-PAK until April 30, 2011. Upgrades start at $49. First-time purchases start at $129.

Band-in-a-Box 2011 has over 50 new features and enhancements. These include improvements to the sounds of RealTracks, much smaller size of RealTracks, a new Mixer window, and more.

They've made big improvements to the sounds of the RealTracks, so that they sound more natural over a much wider range of tempos with the élastique Pro V2 time stretching engine by zplane.development. And they've made the size of the RealTracks much smaller, so that they now only take up 30% of the space that they used to. The new version will shrink the size of your existing RealTracks too, so that you can free up lots of space on your drive.

they've enhanced RealTracks so that you can now have RealTracks styles changes within a song, generate Soloist Medleys - solos that play RealTracks instruments during the solos, and more. There's a Scales Wizard for practicing, which generates scales for any chord progression. New StylePicker Filters show you only the styles that match your search criteria. And much more.

More details here.