How much do you know about the musical theory behind The Beatles?

Find out lots more on Tuesday, June 24, at the Laramie County Library Cottonwood Room on the first floor when Aaron Krerowicz presents 'The Beatles, Band of the Sixties,' at 7 p.m.

The free 90-minute exploration of the Fab Four includes interviews, audio cuts and details about their early touring. The program is open to the public.

Krerowicz is a teacher and Beatles scholar who studied music theory at Butler University and music composition at Boston University and the University of Hartford. He won a grant in 2011 to study the band from Liverpool and Tuesday's presentation is the end result.

Learn more than you ever knew before about John, Paul, George and Ringo at the Laramie County Library.