Note Position Material, with box, a,b,c etc

Wooden box with compartments containing the following material: a)movable material representing treble clef and bass clef, crescendo and diminuendo, and accidentals; b) a set of 8 white wooden disks with the names of the notes on one side and the numbers 1-8 on the other side; c) a set of 64 wooden disks bearing the notes of the C major scale; d) a set of 20 black wooden disks; e) a set of 15 disks for semitones.