Broken Music was an exhibition of artists' recordworks collected for the daadgalerie, Germany by Ursula Block and Michael Glasmeier. A 280 page book with a compendium of visual and textural data about the exhibited items was published in 1989, and reprinted in 2019 by Primary Information. The selection of titles is based on four criteria: 
C over - Record covers, which are original works by visual artist, or which have been made after the design of a visual artist 
O bject - Records with object-character, sculptures which utilize records artistically and sculptures in which records serve the function of a plastic material 
P ublication - Exhibition catalogues and books, which contain a record for additional information 
S ound - Records, which have sound produced by visual artists