Well ---- I guess the word "concert" has been appropriated for another use these days. My first concert [in the classic sense] was to see "The First Piano Quartet" at The Philadelphia Academy of Music when I was about 10 years old. I still have the 12" 78RPM records that my Mother bought in the lobby as we departed. It was a life-changing event that directed my life in the direction of becoming a professional musician. Great memory !