Inspired by William Ernest Henley’s (1849–1903) iconic poem of the same name, Stacy Garrop’s new piano concerto INVICTUS was commissioned by and written for Chicago native and multi-Grammy-nominated pianist Marta Aznavoorian, who performs it with the Chicago Philharmonic under Artistic Director Scott Speck. Despite a difficult life beleaguered with health issues, William Ernest Henley’s poem Invictus, Latin for “unconquered,” is …