Quadro has seen concerts during 18 years.

Year   Concerts Seen  
2022 15 concerts
2020 1 concert
2019 10 concerts
2018 11 concerts
2017 9 concerts
2016 12 concerts
2015 7 concerts
2014 7 concerts
2013 13 concerts
2012 4 concerts
2011 4 concerts
2010 4 concerts
2009 4 concerts
2008 1 concert
2007 2 concerts
2006 1 concert
2005 1 concert
2002 1 concert