I found this old Schaefer Music festival lineup card on a blogspot "streetsyoucrossed", so I have to give them a shout out. The Schaefer Music Festival was a long running summer staple here in NYC. Shows were held at the Wollman Skating rink. Check out the ticket prices, $1.50 for balcony & $2.00 for Orchestra! I was lucky enough to see a bunch of shows there & if the show was sold out you could always sit on the rocks in Central Park and listen for free. Check out this lineup:I think this was the 1973 lineup.