With a horde of rhythm games now each requiring its own army of plastic toys to enjoy, we thought we'd try to simplify things for you. Introducing version 4.1 of the Instrument Compatibility Matrix. We'll keep updating this page as new information percolates out, hoping one day to fill in every square with a green "yes." Until that time, check out our chart skills below. (If we've gotten anything wrong, let us know and we'll look into it.