The Freisinger Chamber Orchestra, a new Boston-based ensemble that gave its first-ever concert in July 2008, recently performed a concert featuring the world premiere of Matti Kovler’s Nineveh, a five-movement work for string orchestra and tape. The concert, which also included Haydn’s Symphony No. 83, Mozart arias sung by mezzo-soprano Thea Lobo, and Mozart’s Piano Concerto No. 15 (K. 450), with pianist Eunyoung Kim, took place at Old South Church on Boylston Street in Boston on January 31. Freisinger, a pianist, vocal coach, violist, and conductor, created the orchestra with the purpose of presenting a wide variety of chamber music, from Baroque to the 21st century, mixing young and established soloists. The orchestra’s March 14 concert will feature the world premiere of Donald Denniston’s Normandie, plus Bartók’s Divertimento for Strings and African-American music including spirituals and works by Eubie Blake.