Resource types:

Primary	Sources from the day
Secondary	Later articles about the armonica and musical glasses
Tertiary	General reference for relevant background
Fiction	Fiction in which the armonica or musical glasses appear
Science	Modern articles about the science of glass bells
Scores	Currently available scores of armonica music

Warning: mysql_pconnect() [function.mysql-pconnect]: Access denied for user 'wzeitler_16'@'174.121.67.68' (using password: YES) in /home/glassarm/public_html/ppm/common/cls_database.php on line 72
Could not connect to db13.pair.com