Tic Tac Toe is a great way to review just about any concept!I have flash cards of notes on the staff, chords, keys and keyboard names. Depending on the student's level I make a grid out of these cards. 3 x 3 like Tic Tac Toe.
Then I have a stack of drawing cards with the alphabet on them or the chord or key names. The student draws a card and marks their board if they find the matching chord, key or note. I usually have a game going for me or another student and we see who can get tic tac toe first.
After someone wins, I replace the marked cards with new cards so they can have some different material to work on. The markers you use can be anything: bingo chips, candy, erasers or my favorite: Magic Notes
Look for my Tic Tac Toe Keyboard Game.