The hymn Nun ruhen alle Wälder (Now All Forests Rest), arranged by J.S. Bach (No. 6, So sei nun, Seele, deine, from Cantata BWV 13), is a guiding light throughout this four-movement composition. Pütz wrote this work as a musical outcry against the wilful, profit-driven destruction of our environment. When Bach used the word “ruhen” (to rest) over 350 years ago, it probably had a different nuance from the meaning it has today. At the beginning of the 21st century - the so-called age of prog...