Yamaha Portable Keyboard PSR-E473/PSR-EW425 | tutorial video 04. Using MOTION EFFECT

This video shows you how to use Motion Effect function to apply some dynamic effects to your performance. Yamaha Digital Keyboard PSR-E473/PSR-EW425 http://4wrd.it/PSRE473_WEB http://4wrd.it/PSREW425_WEB