From Klein's comments on early recordings that remain available today, the reader can get a glimpse of what legendary singers such as Patti and Lind sounded like more than a century ago. The essays of Herman Klein that appeared in The Gramophone from 1924 until 1934 are indispensable sources of information on the singers of the Golden Age.
This is a marvellous gateway into learning about the Great Singers of the early 20th Century and Bel Canto. Klein was a student of Manuel Garcia. A must read for lovers of Bel Canto.