One of our favorite Vita games of the year is getting its first set of DLC today. Four add-ons for Sound Shapes will be available on the PlayStation Store later today, including one that will be completely free.

The "Curved Terrain Pack" is a free download, and it allows you to "bend, stretch, and shape curves" to add smooth surfaces to your user-created levels.

The other three packs cost $0.99 each and add five new instruments, Beat School levels, and Trophies:

• Acoustic Sound Pack: Players can bring some clean analog tones to their game with five new acoustic instruments. Strum and pick a masterpiece with guitars, dance across the ivories on the piano, or thumb up the unique sounds of the kalimba.
• Drum Kits Sound Pack: This pack is all about rhythm. Snares, hi-hats, toms and more will let you groove out everything from a cool jazz backdrop to a driving rock beat. There's even an electronic kit for some 80's hip-hop style jams.
• 8-Bit Sound Pack: Compose in the key of chiptune with retro bleeps, bloops, coins and other sound effects from classic games as well as modern electronic synths, bass lines and loops.

Each pack is compatible across both PS3 and Vita.

In addition, additional "albums" created by "entertainment industry luminaries" will continue to launch in 2013. As in the core game, these albums will come from game developers, music composers, and other "notable fans" of the game. (Hopefully, we'll see something as sublime as Beck's album?) The game will expand next year with new vehicles as well, which should offer level creators brand new ways of playing their custom tunes.