Here is a guide for memorizing intervals in music lessons, solfeggio or playing the instruments. How do I work with this tutorial? 1. Print pages 3-10 (color duplex is desirable) 2. Cut the sheets along the blue lines. Thus, on one side there will be a musical representation of the interval, on the other side its written designation. 3. In the classroom, you can conduct a quick survey, where the students name the interval from the musical notation and check themselves by turning the card over.