Yamaha's MX88 synth turns your iPhone into a real instrument
 

I hate, hate, hate computers and phones/tablets on stage. To me, a Macbook sitting next to a keyboardist or percussionist is just asking for trouble. Computers freeze, apps crash and sometimes you forget to turn off notifications and now everyone in...

https://www.engadget.com/2017/11/24/...al-instrument/