I am also hoping to hear the first concerts by CTA at the Fillmore East in N.Y.   I was in the front

row that first weekend when CTA gave one of  their best performances.  We were blown away.

I have been a Chicago fan from '68, and my first CTA concert in '69, having seen them over 15 times

including the exceptional tour in 2005 with Earth,Wind, and Fire.  If you do not have the 2 DVD set

in HD and 5.1 , I highly recommend it.  Looking forward to more Chicago, after all this is their 40th year!