Description: Providing information in the field of music via the Internet; prepackaged computer software, downloadable computer software, files, and data, all in the field of music, music notation, music publishing, music distribution, music education, music practice, music performance, music accompaniment, music recording, music performance assessment, and music theory assessment; downloadable data files and computer software featuring music accompaniments; pre-recorded music recorded on optical and magnetic media; pre-recorded music accompaniments recorded on optical and magnetic media; Providing online forums for posting information, software, files, data, pre-recorded music, and music accompaniments; Retail store services featuring products in the field of music, namely computer software, music accompaniments, pre-recorded music and pre-recorded music accompaniments; Providing temporary use of on-line, non-downloadable computer software, files, and data, all in the field of music, music notation, music publishing, music distribution, music education, music practice, music performance, music accompaniment, music recording, music performance assessment, and music theory assessment; providing temporary use of on-line, non-downloadable computer software featuring music accompaniments