After opening her spring season with a presentation of the first installment of her major new multisensory performance series, “FRAGMENTS,” in Carnegie Hall, MacArthur award-winning cellist Alisa Weilerstein takes the piece to the Severance Music Center’s Mandel Concert Hall in Cleveland (May 11). Perhaps her most ambitious and personal project to date, the new solo cello series sees her weave together the 36 movements of Bach’s solo cello suites with 27 new commissions to make six programs, each an hour long, for solo cello. The cellist gave the world premiere performance of “FRAGMENTS 1 & 2” in Toronto this past January, and “FRAGMENTS 2” will be presented at Tanglewood this coming summer (Aug 9). Click here to watch a preview of “FRAGMENTS.”