Thanks to numerous technological advances over the past 40 years, the tools -- and skills -- needed to cut and mix music together in a live environment has been drastically reduced. What used to require multiple record decks, crossfaders, and not to mention a large library of vinyl records, has been reduced down to a single piece of software that can run on a laptop. Algoriddim, a company that has become well known for its iOS DJ apps, recently released a new Pro version of its desktop app Djay. Built specifically for OS X, Djay Pro takes full advantage of 64-bit processing, multi-core track a