Jerusalem Baroque Orchestra Oboe-Bassoon Brotherhood YMCA Auditorium Jerusalem January 27 The Italian twin brothers Paolo and Alberto Grazzi, oboist and bassoonist, were the soloists in the Jerusalem Baroque Orchestra's most recent concert, conducted by David Shemer. Not frequently encountered on their own, and even less so together, their performance provided an exceptional opportunity to enjoy these instruments. In a trio sonata by Handel and a concerto by Vivaldi, one could savor these instruments' contrasting sonorities as well as their capacity for blending in with each other harmoniously. It takes a formidable dose of these composers' mischievous humor to assign breakneck virtuoso passages to the unwieldy bassoon while allowing the oboe to indulge in melodic effusions. Paolo Grazzi, with Aviad Gershoni on second oboe, displayed appealing grace and elegance in Vivaldi's concerto for two oboes. Alberto demonstrated unimaginable lightness and agility in Vivaldi's Bassoon Concerto. Delightful works by unjustifiably neglected composers Georg Muffat and Jean-FÃ©ry Rebel were the concert's value-added profit.