At a Sunday afternoon concert of Baroque and (more or less) contemporary music in Cologne by harpsichordist Mahan Esfahani and the orchestra Concerto Köln, some listeners were evidently not ready for Steve Reich’s Piano Phase (1967). First, as Esfahani gave a spoken introduction in English, some audience members demanded aloud that he speak German; then Reich’s music was greeted with enough whistling, slow clapping, and laughter that Esfahani abandoned the piece halfway through. (in German; Google Translate version here)