Building up your beat lab's equipment arsenal to finish up production on that 80s-themed mix-tape that you've been working on? Then you might want to check out Animoog 2.0 for iPad. Loaded with a smorgasbord of abilities, the updated synthesizer app adds features like scale lock and a note hold button that allows you to maintain tones between presets. Users also gain accelerometer-controlled sound modulation and a free ($5 after December 31st) in-app four-track recorder that lets you sample, edit and loop music
