“The Many Worlds of Tom Roberts: From Stride Piano and Virtuosic New Orleans Rhythm and Blues to Tango and Choro” will feature pianist and Pittsburgh native Tom Roberts, who has played at Carnegie Hall and composed music for “The Aviator” soundtrack. Limited seating is available at $25 for adults, $20 for ARCA members, and $5 for students. Visit www.alleghenyriverstone.org, or call 724-659-3153 to reserve your tickets!