Hosted by the Quad City Symphony Orchestra's music director and conductor Mark Russell Smith, the organization's annual Signature Soirée will take place online this year on September 19, the virtual Moonlight Sonata event boasting performances by the symphony's resident concertmaster Naha Greenholtz and principal cellist Hannah Holman, a live auction, and a three-course dinner, chocolates, and a floral arrangement delivered to ticket-holders' homes.