The four reface synths were launched in 2015 in occasion of Yamaha’s 40th anniversary; they are re-imagined interfaces of classic Yamaha keyboards. Reface DX re-launches the FM synthesis of the DX7, adding a phrase looper and a multi-touch control interface to it; the Reface CS uses analog physical modelling to create multiple synthesis and oscillator types. The Reface CP and YC, instead, similarly modernize Yamaha’s take on electric piano and organ.