Street Jazz On January 17, 2015 By Fred KingIn Brooklyn, musicians, Nikon D7000, Park Slope Jazz on 5th Ave., Park Slope, Brooklyn. William Alexander Middle School #51 in the background. 40.672111 -73.983882 Rate this:William Alexander Middle School 51, 350 5th Avenue, Brooklyn, NY 11215, USA Share this:Share Click to print (Opens in new window) Print Click to share on Reddit (Opens in new window) Reddit Click to share on LinkedIn (Opens in new window) LinkedIn Like Loading...