This series of five videos features a lot of audio demos and jamming with the new Yamaha Reface line of keyboards.
In each of the videos, Blake Angelos and Nate Tschetter work with a pair of the Reface keyboards, offering a good overview of the range of sound and playability of each keyboard.
Pricing and Availability
The reface YC, CP, CS and DX mobile mini keyboards will ship in September 2015 and are expected to have a street price of around US $500. See the YamahaSynth site for more info.