Roli's quirky musical keyboard is now an iPhone app
 

When ROLI introduced the Seaboard -- a quirky interpretation of the musical keyboard -- it was hard not be curious. But, at $2,000, that's likely where you remained. Even the smaller, more affordable Seaboard Rise was a little out of reach for many c...

http://www.engadget.com/2015/12/18/roli-noise/