Your first concert was to see who and when?

The Beatles. Sam Houston Coliseum, Houston TX, 8-19-65

Van Morrison at the San Bernadino Orange Show Event Center sometime in '72 when I was 16.  Since I had my drivers license I was the driver in a '56 VW bug.  Still running 6-volt, so the headlights were about half as bright as a Bic Lighter.

Thanks for the memories! -John

First major concert U2 Unforgettable Fire tour 84/85. First actual concert Resurrection Band in a church (duh!) Still the loudest concert I've ever attended. And I've been to many hardcore shows. 

Black Sabbath, the original lineup, December 1, 1976 at the Providence Civic Center.  Montrose opened.  The Technical Ecstasy Tour.  Now they’re done.  Farewell.  

Saint Matthias, third grade, 1962. A 25 piece Classical ensemble performed. Made a lasting impression.

First Rock music was a free Jefferson Airplane concert (old bandshell, South end of Grant Park, Chicago). Must have been 1967.