Before we go any further, I don't care what people say about keytars... They. Are. Fun.
And you can transform your reface synthesizers into keytars thanks to the keytar attachment now available from Yamaha. The MSRP is around $79... but, if you buy a reface synth now you'll get the keytar attachment for free!
At Ask.Audio we like it when music and technology combine in a fun and playful way. And this pretty much sums up what happens when you begin wearing a Reface like a keytar. Fun.
More about Reface Keytar attachment: http://usa.yamaha.com/news_events/music_production/yamaha_reface_keytar/