Michael Riddell has seen concerts during 27 years.

Year   Concerts Seen  
2017 2 concerts
2016 2 concerts
2015 1 concert
2013 2 concerts
2010 2 concerts
2006 1 concert
2002 1 concert
2000 1 concert
1999 1 concert
1995 1 concert
1994 1 concert
1993 1 concert
1992 1 concert
1991 2 concerts
1990 1 concert
1989 1 concert
1986 2 concerts
1985 4 concerts
1984 4 concerts
1983 1 concert
1982 3 concerts
1981 6 concerts
1980 12 concerts
1979 11 concerts
1978 3 concerts
1977 9 concerts
1976 2 concerts