MON. BRIEF: Billie Eilish Rules, Spotify Stock Slips, Stones Postpone, Tracklib and More Posted byBruce Houghton April 1, 2019April 1, 2019 Leave a comment on MON. BRIEF: Billie Eilish Rules, Spotify Stock Slips, Stones Postpone, Tracklib and More MONDAY 4.1.19 Music Business News From Around The Web Updated continuously under the More News tab