|  | The only published reference to Mahler's 
				continuing (though underwhelming) interest in composing an opera 
				is a brief reference by Henry-Louis de La Grange 
				(HLG1, 
				716; 949, n. 10): 
					
						
							| 
							According to a very reliable source, 
							Mahler did not give up the idea of writing an opera 
							after 1888 and was still discussing another such 
							project with his childhood friend, the lawyer Emil 
							Freund, as late as 1901. |  The 'very reliable' source of this 
				information was
				
				Vilma Löwenbach (née Zucker, 16 May 1891–26 April 1975). Her 
				family were close friends of Emil Freund, and apparently she 
				received this information from him. Her husband,
				
				Jan Johann Löwenbach (29 April 1880–13 August 1972), was a 
				Czech copyright lawyer, music critic and librettist who was 
				connected with the music publisher Hudební matice and in later 
				years acted on behalf of Leoš Janáček.¹ |