The work you find children doing in Montessori classrooms varies widely. Did you know that even in early childhood rooms, the work available includes music?
The bells are used in the primary setting to introduce concepts of music. After learning proper handling of the materials children explore tone and learn through usage the keyboard convention of directionality of sound(low tones on left, high tones on right). When they are ready children learn to name sounds, and eventually how to express sound in writing (musical notation). Children are also given the opportunity to sing with the bells or to play known melodies by ear.
Pleasure in the production of music is a wonderful early childhood experience for all children.