3D Paper Projects are fun, more affordable and easier than you would think. They are the perfect solution to the create something beautiful from paper.The kit contains 09 instruction and 14 pattern sheets. An accordion is a musical instrument which is played by compressing or expanding a bellows in a horizontal direction. When the central bellows are compressed and expanded, air flows to the instrument’s reeds. Music can be made by simultaneously pressing the keys on the right hand side.