Game software; Computer application software for mobile computers; Computer graphics software; Computer software programs for the integration of text, audio, graphics, still images and moving pictures into an interactive delivery for multimedia applications; Software for processing digital music files; Computer software featuring musical sound recordings and musical video recordings; Computer software for communicating with users of hand-held computers; Computer software for manipulating digital audio information for use in audio media applications; Computer software for processing digital music files; Computer software for use in relation to digital animation and special effects of images; Computer software for wireless content delivery; Computer software platforms for development of interactive audio applications for use with mobile audio platforms; Computer software to control and improve computer and audio equipment sound quality; Computer software executable to cause mobile devices to function as musical instruments; Downloadable computer software for mobile devices that enables users to transform and enhance the video and audio capabilities of their mobile devices; Downloadable computer software executable to communicate amongst mobile devices using audio encodings of information; Downloadable computer software executable to provide mobile devices with signal processing capabilities; Downloadable computer software for mobile devices that enables users to interactively perform individualized audio and video; Downloadable computer software for mobile devices that enables users to send music, text, audio, video, and graphics information to other users of mobile devices; Downloadable computer software for mobile devices for enabling users to download and share interactive audio and music using mobile phones; Downloadable computer software for mobile devices for enhancing audio and video capabilities for entertainment purposes; Downloadable computer software for mobile devices for personalizing audio performances on a mobile device based on user interaction