Heller-Roazen, Daniel. <br/><br/>
Fifth hammer: Pythagoras and the disharmony of the world / 
 The fifth hammer: Pythagoras and the disharmony of the world / 
Daniel Heller-Roazen. 
 - New York :  Zone Books ;  2011. 
 - 191 p. ;  ill. ;  23 cm. 
<br/><br/> £ 28.00<br/>2821440/107<br/>Princeton University Press 
<br/><br/><label>ISBN: </label>9781935408161 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Music--Philosophy and aesthetics.<br/>Music theory--History.<br/>Cosmology.
<br/><br/><label>Dewey Class. No.: </label>781.2501 HEL