Copyright 1999, John Koopman. All rights reserved. No part of these websites, designated A BRIEF HISTORY OF SINGING and UNSUNG SONGS, or their contents may be reproduced, stored in a retrieval system, or transmitted in any form or by any means--electronic, photocopying or otherwise--without the written permission of the copyright holder. For information about the use of this material please contact the author through the Conservatory of Music, Lawrence University, Appleton, WI , (U.S.A) 54912-0599. Fax 920 832 6633