Both boys became very interested in reviewing the building of major scales. They can play the violin in the keys of G, D, A, Bb, d minor, and a minor. Me Too liked to use the resonator bells and major scale strip to build the G, D, and A scales and then play Suzuki violin songs he knows by ear.
Kal-El went a little further and built major scales starting on every pitch possible. Whenever he built a scale he plays on violin, he brought out the letter charts we sing Suzuki songs from and played the songs on the bells.
When he ran out of music he became super involved in writing his own music (again) and working on taking his notational skills to the next level. He is now interested in learning about minor scales with the bells so that he can expand his repertoire.
Me Too wanted to start learning to read pitches on the staff and so started working his way through the traditional montessori bells/bars exercises.