By Victor Swoboda As part of the 20th anniversary of Festival Quartiers Danse, Malandain Ballet Biarritz staged Nocturnes at the Wilder Building’s Studio-Theatre. Intrigued by the darker side of Chopin’s music, company founder/choreographer Thierry Malandain moved his dancers along a narrow strip amid a pervasive gloom, an arrangement that, according to program notes, recalled medieval