Chocolate Cake Pops with music note ribbon/label with sheet music base
Search "sheet music flowers" - perfect for that musical touch, and would be awesome for centerpieces. One or two sheet music flowers with one or two real flowers. Less expensive, and more personal!
music party- notes on the table cloth!
Check out these DIY Paper Plate Records - This would be so easy to do! Find black paper plates and then put various circles in the center. You could do the kids names, various subjects, ANYTHING!
The Frosted Petticoat: Heart Beats chalkboard