Gustav Mahler's Symphony No. 1 is an incomprehensible wonder of music history, rigorously peculiar, disturbingly new, and timelessly modern. "Wie ein Naturlaut" (Like a sound of nature) is indicated above the first notes of the symphony. It is both the prelude and the key to his symphonic cosmos as a whole. Mahler captures this music of the world, transforms it into a symphony in the old, comprehensive sense of the word and uses it to create his masterpiece of harmony. Composed over the course of just a few months at the beginning of 1888 in Leipzig, this symphony is a true musical awakening. Riccardo Chailly and the Gewandhausorchester Leipzig bring Mahler's sounds of nature to life in a riveting performance. This production was recorded live in January 2015 at the Gewandhaus zu Leipzig. As a bonus, this release also includes an exclusive interview with Riccardo Chailly.