This is such a good book! Presented in the form of a calendar there 52 graphic scores (one for each week) and the possibilities for extending the imagination are obviously endless. The drawings range from something as simple as a few dots and dashes to more complicated patterns and are a great way to encourage playing without music but with at least something to look at. It would be ideal for hanging in the teaching room as absolutely anyone of any standard can use it and have fun.
Difficulty level, roughly compared to ABRSM exam grades. 0 is beginner, 9 is advanced (beyond grade 8).