The London-based Orchestra of the Age of Enlightenment has "thrown out the rulebook": The ensemble often performs without a conductor, makes decisions by committee, and performs on period instruments. The program for OAE's February 16 performance at Kodak Hall will include Beethoven's Violin Concerto and Symphony No. 4. While centuries-old instruments can sometimes be beaten and battered, OAE bassist Cecelia Bruggemeyer says, "The sound world we get is amazing. It's very different to a modern orchestra." At this performance, OAE will be joined by sought-after Scottish violinist Nicola Benedetti, who plays a Stradivarius built in 1717. Although the instrument predates Beethoven's frequently performed concerto, no one can deny the appeal of marrying a favorite work with such an esteemed instrument.