Acknowledgements
The publication of this book was made possible thanks to the support of the Swiss National Science Foundation (10BP12_209286/1).
I owe a debt of gratitude to Michael Aspinall for providing me with great insight into Luisa Tetrazzini’s records and discographies, for reviewing an early version of the manuscript and making many valuable suggestions. My thanks also go to all the colleagues and students with whom I have been able to exchange views, experiment with ideas and reflect on the need to have musicians who are better informed about the facts of our musical history.
This book is dedicated to Silvia.