Gl Otron has seen concerts during 13 years.

Year   Concerts Seen  
2023 1 concert
2022 3 concerts
2018 1 concert
2016 3 concerts
2014 1 concert
2013 1 concert
2012 6 concerts
2011 8 concerts
2010 4 concerts
2009 3 concerts
2008 5 concerts
2007 5 concerts
2006 4 concerts