Amazing how they fit so much in such a tiny wonder. It works well and is easy to use. Good thing too, because the instructions are almost unreadable. Tiny and poorly printed on cardboard. You may not need this if you are buying a keyboard with a built-in cord dictionary like the PSR-292, but at less than $10 it is hard to say no.

As a music student/composer I greatly appreciate reference tools and none is so convenient than this. This key chain size chord finder fits into my pocket and is always at hand when I need it. It is a great investment (especially at only $9.99) for any composer