It was on this day in 1968, that American jazz saxophonist and composer, John Coltrane was to have held a concert at Philharmonic Hall—now known as Avery Fisher Hall—in New York City. Appearing on the bill with Coltrane would have been Yusif Lateef and Babatunde Olatunji. Find out why the concert didn't take place and hear what we think it could have sounded like on today's "A Day in the Life."