According to James Camner in Fanfarevol. 21, no. 3 (January/February 1998):(subscription required) "Due to an earlier, imprecise transfer of this 1923 recording to LP, Fanny Heldy's performance as Manon has been called shrill, but through the corrective, uncannily accurate work of Ward Marston, we now hear why the beautiful Belgian soprano was the idol of Paris."