Strike Up The Band is located at 5 Washington Street in Natick.  The store's owner, Daryl Robbins, is one of my former trumpet teachers and an excellent resource for all things musical.  Daryl keeps a substantial inventory of music, equipment, and supplies in his store and can order anything he does not have on hand.

Osmun Music in Arlington sells instruments, supplies, and music, in addition to being an excellent repair shop.

Rayburn Music in Boston carries a large supply of instruments and accessories.