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Acknowledgments
I wish to record my thanks to Professor Graham Welch and Professor Susan Hallam, my supervisors throughout my time of study at the Institute of Education, University of London. Their support, both intellectual and personal, is warmly appreciated and remembered.
Thanks are also due to Dr Evangelos Himonides, whose patient work with the data made in-depth analyses of the original findings possible. He was kind enough also to advise on and assist me in the production of high-resolution graphics, needed for publication, and I am again truly grateful for his precision, professional standard, and forbearance.
I owe Mark Tinkler a huge debt of gratitude for allowing me access to English Pocket Opera Company and for giving me so much support over this study. Also, my thanks go to all those, and there were many, who either participated in the project or found ways to help it along during the several years it took to complete.
I want to thank my parents, sister, and brother, and my son, Alexander. His endorsement and support of this work kept me positive through some difficult times.
Lastly, I would like to thank the staff of Cambria Press for their insights, creative ideas, and support for my work.