As the rift between academic jazz, new age, and pop narrowed in the 1980s, DI.Y. practitioners of metronome driven riffs found new growth in a burgeoning managerial middle class, a commercial audience held captive in dentist offices and waiting rooms across America. Session players took to midi-banks stocked with every instrument imaginable and delivered on a road rage-induced demand to stay cool, relaxed, and focused all at once.