Methods for generating music are disclosed. A music data file is generated at a first node. The music data file is transmitted from the first node and received at a second node. Musical definition data that provides information regarding a data structure and data for musical parameters is extracted from the music data file at the second node. The musical definition data is processed and music is generated at the second node for playback in accordance with the data structure and the musical parameters. A modified music data file is generated at the second node and transmitted to the first node. Modified music is generated at the first node based on the modified music data file.