Doesn't have to be. It is more related to the style of sequencing . Now there's even a hardware device that does this http://www.youtube.com/watch?v=MQufJBVvA

Doesn't have to be. It is more related to the style of sequencing . Now there's even a hardware device that does this http://www.youtube.com/watch?v=MQufJBVvAtY http://www.youtube.com/watch?v=MQufJBVvAtY