Big City Music has been at NAMM for many years now and there is always something interesting to play with. One of the highlights included the Swarmatron.
Photo by Mike Morgan
The Swarmatron is an analogue synth named after its multiple oscillators linked through a "swarm" control. There is no keyboard and it instead uses a ribbon controller. It has been used by Trent Reznor and Atticus Ross among many others. Here is Tara Busch & Leon Dewan using it at this years show: