early gurus of electronic music

$35.88 OHM:THE EARLY GURUS OF ELECTRONIC MUSIC-JOHN CAGE/STOCKHAUSEN/MEV-3xCD + BOOK!	$27.79 VARIOUS - OHM PLUS:EARLY GURUS OF ELECTRONIC MUSIC - CD
$42.44 Ohm: The Early Gurus of Electronic Music, 1948-1980, Various Artists, Box set