Made by Danny Ryan. The intention with the game is to make music theory for beginners easier to learn. There are 52 cards in a DEELAKORD pack. Of these, 28 are Note Cards, 8 are Sharp Cards, 8 are Flat Cards and 8 are Common Cards. Common Cards may be substituted for any Note, Flat or Sharp Card. May be played solo or with others. Deelakord Special Decks Card Games Games.