Calchas has seen concerts during 27 years.

Year   Concerts Seen  
2024 1 concert
2023 2 concerts
2020 1 concert
2019 2 concerts
2018 3 concerts
2017 2 concerts
2016 1 concert
2014 1 concert
2013 3 concerts
2011 2 concerts
2010 4 concerts
2009 6 concerts
2008 6 concerts
2007 5 concerts
2006 1 concert
2004 2 concerts
2003 2 concerts
2002 3 concerts
2001 4 concerts
2000 1 concert
1998 1 concert
1996 1 concert
1995 1 concert
1994 2 concerts
1992 2 concerts
1990 1 concert
1988 1 concert