Solo literature is somewhat lacking, although some modern composers such as Gunther Schuller, Donald Erb, Michael Tilson Thomas, John Woolrich, Kalevi Aho, and Daniel Dorff have written concertos for this instrument (see below). Stephen Hough has written a trio for piccolo, contrabassoon and piano "Was mit den Tränen geschieht". Contrabassoon may theoretically play music for bassoon, which has much more solo repertoire, but the sonic and mechanical differences from the bassoon (and bassoon's comparative facility in the high register) mean that bassoon repertoire is not always suited to contra.