here is my marketing idea : find a good music theory book that 's used in primary and secondary schools , add a small USB keyboard that fits inside a backpack and make a bundle with your usefull software

here is my marketing idea : find a good music theory book that 's used in primary and secondary schools , add a small USB keyboard that fits inside a backpack and make a bundle with your usefull software
I've never seen one similar offer here in Italy...