1. Google searches turn up letters written by Neuberth as late as 1928; 2. Worldcat searches turn up compositions arranged by Neuberth as late as 1931 or so. (Also one in 1959, but that's a reprint of one actually published in 1930. Fairly sure the 1931 ones are not reprints just as the 1930 one- a Roussel Aria that I think has come up, possibly under a different arranger, in another thread elsewhere on this site and IMSLPForums? or perhaps his first aria instead - is not either. Eric 16:31, 31 July 2011 (UTC)
