See attached vyakhyana.
I had a PDF of this. I am not even sure if this book is available for purchase. This is such a rare book, I thought I should share this important work with interested people.
I am not even sure "naada yoga" is compatible with the rest of Shankara charya's prashtana traya bhashyas. There are some people who feel that this "yoga taravali" was not really authored by "Adi shankaracharya". See this book for details. However, in the list of works of Shankaracharya, published by some sources, mention this book as one of his works.
Yoga taravali supports "naada yoga".
Mandala Brahmana Upanishad explains in detail: concepts and terms given in Yoga Taravali such as : antarlakshya, bahirlakshya, ama dristi, purnima drishti, and so many other yogic concepts. Hence this book gives an explanation of "Mandala Brahmana Upanishad" first, and then gives a brief explanation of "Yoga Taravali" .
Thanks to Oriental Research Library Mysore for digitizing this book.
Best Regards,
Krishna Kashyap