The Chicago Sinfonietta partners with the Chicago Architecture Foundation for the final concert of its 25th season, a celebration of American cities. Highlighting the City-Scapes show is "ChiScapes," a four-part composition commissioned especially for the show that profiles four iconic Chicago buildings: Crown Hall, Aqua, Pritzker Pavilion and the Art Institute's Modern Wing. The show has one performance in Naperville on June 8 and one at Orchestra Hall of Symphony Center, 220 S. Michigan Ave., at 3 p.m. June 9. Tickets range from $26-$50 for concerts at Symphony Center, with special $10 pricing available for students. Tickets can be bought by phone at 312-236-3681 Ext. 2 or online at www.chicagosinfonietta.org.