Scorealgorithm1 composes musical scores using controlled, randomized procedures. It is written in Python, and the output is compatible with the digital synthesis software CSound. Scorealgorithm1 is a flexible composition tool that can create varied styles of music with changing harmonic, melodic, and rhythmic textures. The program also features various tuning systems and adaptable performance controls. Complex repetition, even canonic imitation, is possible. Visit the Web site for tutorials, documentation, and examples of music created using the software.