I also wish to acknowledge with deep gratitude the large help I have received from a number of friends in India. The following have done so much for me that it is a pleasure to mention their services. Mr. N. V. Bhãtkhande, M.A., LL.D., author of a number of musical treatises in Marathi and Hindi, read the draft of the manuscript and suggested many corrections. M. R. Ry. C. R. Śrĩnivãsa Aiyengar, B.A., L.T., of the Sanskrit College, Mylapore, gave much assistance with regard to the Sãman chant and ancient books on Indian music; Sāhabzada Syed Sãdat Ali Khān Bahãdur, Home Secretary of Rãmpur State, who is an accomplished musician, gave many hours of valuable time to satisfy my desire for a better practical knowledge of the music of the north; the Rev. L. I. Stephen of Erode taught me much of what I know, both of theory and practice, in south Indian music; while Takhur M. Nawab Ali Khan of Lucknow rendered valuable help. Thanks are also due to the editors of the Heritage of India series for their kind assistance, and especially to Dr. J.N. Farquhar, who has read through all the proofs with the greatest care and made many suggestions of great value.
To every other one who, whether in conversation or by letter, has given me information or led me to clearer insight I would express my sincere gratitude and thanks.
I wish also to make acknowledgment to the editors of 'Outward Bound' for their permission to make use of the raga pictures; to the authorities of the Indian Museum, Calcutta, for allowing me the use of valuable negatives for some of the pictures of musical instruments; to the India Office, London, for permission to photograph and reproduce the raga pictures; and to the proprietors of the Times of India for kindly letting me have the use of a number of half-tone blocks of pictures of musical instruments.