URL for importing or subscribing the concert dates above into your calender program: http://myconcerts.nu/cgi-bin/konzerte_ics.pl?language=en&keyword=Die%20Nacht%20der%205%20Tenöre
http://myconcerts.nu/cgi-bin/konzerte_ics.pl?language=en&keyword=Die%20Nacht%20der%205%20Tenöre