EXHIBIT 21.1 STATE OR OTHER JURISDICTION OF INCORPORATION OR SUBSIDIARIES OF MUZAK HOLDINGS LLC ORGANIZATION - ---------------------------------------- ------------------------------ Muzak LLC Delaware Business Sound, Inc. Ohio Muzak Finance Corp. Delaware Muzak Capital Corporation Delaware MLP Environmental Music, LLC Washington Electro-Systems Corporation Florida Muzak Heart & Soul Foundation Washington Muzak Holdings Finance Corp. Delaware STATE OR OTHER JURISDICTION SUBSIDIARIES OF OF INCORPORATION OR MUZAK HOLDINGS FINANCE CORP. ORGANIZATION - ---------------------------------------- ------------------------------ None.