The Ohio State School of Music opens its 2000-2001 Performance Series this week with two special presentations. Tonight, the OSU Chamber Orchestra kicks off the season with a concert that includes Haydn’s Symphony No. 82, “The Bear,” Copland’s “Music for the Theatre,” and Brahms’ “Serenade No. 2 in A Major.” The ensemble of OSU faculty and selected advanced students is conducted by Marshall Haddock.The second presentation is a performance by the Klemperer Trio on Wednesday. The trio will be performing as part of the school’s “Wednesdays in Weigel” series.Formed in 1980, the trio consists of Erika Klemperer on violin, Ronald Crutcher on cello and Gordon Black on piano. They will perform Beethoven’s “Trio in E-Flat Major, Op. 1, No. 1,” Hallstork’s “Trio” and Mendelssohn’s “Trio in D Minor, Op. 49.” Born in the United States, Erika Klemperer studied in England in 1974 with Yehudi Menuhin and Yfrah Neaman. Today, she lives in London and is a professor at the Guildhall School of Music and Drama.Ronald Crutcher was recently named provost at Miami University in Ohio. He studied with Aldo Parisot at Yale University and was the first cellist to receive a doctorate in music arts.He is a former member of the Cincinnati Symphony Orchestra and a recipient of the coveted Fulbright Fellowship.Gordon Black has performed with artists such as Yehudi Menuhin, Aaron Rosand, Sarah Chang and Julian Llyod Weber. A native of Wales, Black is head of the Department of Accompaniment at The Guildhall School of Music and Drama.The visiting artists are selected by suggestions from faculty and friends, said professor Don Harris of the School of Music. They choose “someone who has something special to bring,” he said. “The Beethoven and Mendelsshon pieces that will be performed this Wednesday are interesting pieces and the Hallstork is a Columbus premiere,” Harris said.Jeanette Frazer, also a faculty member in the School of Music, described the 2000-2001 Performance Series as six different programs.The series consists of Wednesdays in Weigel, the Chamber Orchestra, the Faculty Artist Series, Music on the Edge, the Complete Works for Cello and Piano of Ludwig Van Beethoven and Contemporary Music 2001, Frazer said.Performance times are at 8 p.m. at Weigel Auditorium. For more information, call 292-2300.