Treble Clef is a custom deck of playing cards inspired by classical music. Originally, John Yohan Cho was working on this deck of playing cards. However, he suddenly stopped working on it due to his personal reasons. So I kindly asked him for permission to finish up what he had left. I decided to design the faces of the cards. In addition, I began to fix and add my ideas onto the back of the cards. Finally, it's ready to come out to the world! Treble Clef deck of Playing cards is functional. All 52 cards are fully marked with suits and values. If you are a magician, then you would be able to find your spectator's card without seeing the face of the card. Also, this deck contains two gaff cards that are very practical and usable.