There鈥檚 a welcome chance to hear music by Louise Farrenc, with her dramatic concert overture dating from the 1830s. Mendelssohn鈥檚 Violin Concerto sounds as fresh as if written in one burst of inspiration. The quicksilver finale is unadulterated enjoyment. The five movements of Berlioz鈥� stunning Symphonie fantastique embody the visions of a lovesick musician in the grip of an overdose of opium. The idea of his beloved returns in various guises through the work, ending in a nightmarish witches鈥� sabbath. A profoundly imaginative score, it made the composer鈥檚 reputation all over Europe.