“Do not miss an opportunity of practising music in company with others; as for example in Duets, Trios, etc.; this gives you a flowing and elevated style of playing, and self-possession. – Frequently accompany singers.”
Robert Schumann. Musikalische Haus- und Lebensregeln. Faksimile Übertragung Textdruck, hg. von Gerd Nauhaus, Sinzig 2002, Studio-Verlag (Schumann-Studien, Sonderband 2)
