Leonid Sushansky violin with Landon Symphonette, Richard Weilenmann, conductor. The week long residency by violinist Leonid Sushansky Included a lecture, masterclass and performance with the orchestra.The Landon Symphonette, now in its 17th season, is a unique group of talented musicians from Landon School and other area schools and colleges playing together with seasoned professionals, in an unrivaled mentoring relationship. Approximately one-third of the Landon Symphonette is made up of professional performers, up to one-third Landon students and teachers, and about one-third students from all over the Washington, Baltimore and Northern Virginia