Tiny Tutor Oca Oca Oca Ocarina - Book and Instrument. The Tiny Tutor Box contains a genuine fun-size instrument, plus mini-instructions on how to play it. Unlike a tuba or bassoon you'll never have trouble getting on the bus with it. and at home the whole thing takes up on more space than a book. Contents: Ocarina, How-to-play book, Ocarina Fingering Chart and Neck String.