e/Concerto for Horn and Hardart

Information
has gloss	eng: The Concerto for Horn and Hardart is a work of Peter Schickele but is touted as a work by P. D. Q. Bach. The work is a parody of the classical double concerto but where one instrument, the hardart, uses different devices, such as plucked strings, blown whistles and popped balloons, to produce each note in its range. The name "hardart" and the name of the concerto is a play on the name of proprietors Horn & Hardart, who pioneered the North American use of the Automat. Like the automat, the hardart had small windows in the front where the musician had to insert coins to remove implements needed to strike or otherwise play the devices that produced the notes. Although a parody, the work is a well-written example of a classical concerto and could stand as a serious piece of music with a few changes.
lexicalization	eng: Concerto for Horn and Hardart
instance of	c/Experimental musical instruments