ArtSong is a unique music composition tool that combines algorithmic composition with computer-aided composition techniques. Instead of using traditional music notation to specify musical structures, it provides algorithmic 'building-blocks'. It is pure algorithmic with no hidden pre-composed musical sequences so musical decisions are under your control. After you select and configure the algorithmic 'building-blocks' and specify their properties, its composition engine will implement your decisions. The resulting compositions are your original work. It is a great tool for composing fractal music, included are chaotic attractor algorithms, fractal image algorithms, and L-System text-string algorithms.