Providing online non-downloadable software for use in composing, creating, editing, playing, printing, storing, transmitting, exporting and sharing music, sheet music and downloadable music and audio files; Providing online non-downloadable software for use in collaborating with other users in real-time to compose, create and edit music, sheet music and downloadable music and audio files; Providing online non-downloadable software for use in music notation editing and composition; Providing online non-downloadable music composition software; Providing online non-downloadable software for creating and editing music and sounds; Providing online non-downloadable software for processing digital music files; Computer software design and development for others; Computer software technical support services; Development of computer software application solutions