Trombone has seen concerts during 16 years.

Year   Concerts Seen  
2023 1 concert
2022 4 concerts
2021 1 concert
2019 4 concerts
2018 3 concerts
2017 3 concerts
2016 9 concerts
2015 7 concerts
2014 7 concerts
2013 6 concerts
2012 7 concerts
2011 4 concerts
2010 4 concerts
2009 1 concert
2008 2 concerts
2007 1 concert