The New York City subway is known for a lot of things — its maps, its ridership size, its long-delayed Second Avenue line — but never have its sounds been among those defining features. Thats something that James Murphy, former frontman of LCD Soundsystem, has dreamed of changing for 15 years, and this past weekend he shared with The Wall Street Journal what his idea of a sonically beautiful subway would sound like. The subway sounds quite brutal, Murphy tells the Journal.