Ipeggio, the your style arpeggiator/sequencer
Hello look at this, i have made a few ipeggio
It an Arduino Mega stuffed with great code, look at the demo code at github
a midi-shield and a midi-board
Look at tindie.com
https://www.tindie.com/products/rockarp/ipeggio-is-your-style-arpeggiator/
Greatings and have fun with making music on the fly
Dian from the Netherlands