It took almost 100 years for Charles Koechlin’s First Symphony to get a proper recording and over a year for Ariane Matiakh to prepare the material. After her highly praised recording of Koechlin’s Seven Stars Symphony (C5449), this is a much-appreciated further foray into the largely unexplored symphonic world of this fascinating composer, a French chameleon of sorts, who felt comfortable anywhere between Bachian counterpoint and the heights of French impressionism. The earlier Au loin, Poème symphonique and 3 Mélodies (orchestrated posthumously) round out the scintillating picture.