Question: Where was the foremost disciple of the Indian musicologist who wrote the first modern treatise on Hindustani classical music a principal?

full_context: Document 1: Shanno Khurana: Shanno Khurana (born 1927) is a noted Indian classical vocalist and composer, from the Rampur-Sahaswan gharana of Hindustani classical music. A disciple of the doyen of the gharana, Ustad Mushtaq Hussain Khan (d. 1964), she is known for performing rare bandish and raag, though her singing style includes genres like khayal, tarana, thumri, dadra, tappa, to chaiti and bhajan. Born and brought up in Jodhpur, she started singing on All India Radio in 1945 in Lahore, later shifted to Delhi, where she continued her singing on All India Radio, Delhi and in concerts and music festivals. She also pursued music education, finally earning her M. Phil. and PhD in music from the Kairagarh University, and has undertakes extensive research on folk music of Rajasthan.
Document 2: Music in Varanasi: Music in Varanasi is a tradition linked to the ancient times of the Pauranic legends. Lord Shiva, who is reported to have established this city, was credited with developing music and dance forms. Legend also attributes that Renu, son of sage Vishvamitra and Mahagobind, was the precursors of music tradition in Kashi (Varanasi) when nymphs (Apsaras), Gandharvas and Kinnaras were the traditional practitioners of this art form, and saint Chaitanya and Vallabhacharya were the pioneers in spreading this music tradition in Varanasi. Notable musicians of Varanasi include the iconic sitar player Ravi Shankar, the Shehnai maestro Bismillah Khan, and the vocal music singer Girija Devi. Varanasi has joined the global bandwagon of UNESCO "Cities of Music" under the Creative Cities Network. Varanasi chosen in music category of creative cities network clearly signifies the rich musical heritage of this ancient city.
Document 3: Hafeez Ahmed Khan: Hafeez Ahmed Khan (died 2006) was an Indian classical musician of Hindustani classical music. He is known as one of the leading exponents of the Rampur-Sahaswan gharana, a musical school popular in the northern parts of the Indian state of Uttar Pradesh. He learnt music in gurukul system and pursued his academic studies the conventional way, secured a master's degree in politics and taught at the Minnesota University. He was a deputy director of the All India Radio and the vice chancellor of the Indira Kala Sangeet University, the only Indian university dedicated to music. He mentored many disciples such as Rajendra Prasanna, Roma Rani Bhattacharya, Sakuntala Narasimhan and Subhendu Ghosh and acted in a German movie on the life of Tansen, by name, "The Rain Maker". He was a recipient of the 1996 Sangeet Natak Akademi Award. The Government of India awarded her the fourth highest civilian honour of the Padma Shri in 1991. Hafeez Ahmed Khan, who was married to the daughter of renowned singer, Nissar Hussain Khan, died in 2006.
Document 4: Ramesh L. Nadkarni: Ramesh Laxman Nadkarni (1921–1995) was a Hindustani classical music singer from Jogeshwari. Nadkarni a disciple of Aman Ali Khan had composed over 250 melodies and Ragas. He was honored for his dedicated lifelong service to classical music and was awarded a fellowship by Sursingar Sansad, Mumbai. He was part of BHENDI BAZAR GHARANA.
Document 5: Ravi Shankar: Ravi Shankar, KBE (] ; 7 April 192011 December 2012), born Rabindra Shankar Chowdhury, his name often preceded by the title Pandit ('Master'), was a Bengali Indian musician and a composer of Hindustani classical music. He was one of the best-known exponents of the sitar in the second half of the 20th century and influenced many other musicians throughout the world.
Document 6: Sarangadeva: Sarangadeva (1175–1247), also spelled Sharngadeva or Sarnga Deva, was the 13th-century Indian musicologist who authored "Sangita Ratnakara" – the classical Sanskrit text on music and drama. It is considered to be the authoritative treatise in Indian classical music by both the Hindustani music and the Carnatic music traditions.
Document 7: Sanhita Nandi: Sanhita Nandi is a prominent Hindustani classical vocalist of the Kirana Gharana. The central motif of her style is slow tempo "raga" development (voice culture, voice throw, and tonal application) and ornamented "sargams".Sanhita Nandi has rightly established herself as a leading exponent of Khayal, earning high acclaim from discerning critics and enthusiastic audiences on an international scale. Sanhita has developed a distinctive singing style based on firm grounding of traditional training (or taleem), combining pure lyricism with impeccable technique.To further enrich her repository of Kirana Lineage and traditional compositions, Sanhita continues to get trained under the able guidance of Ustad Mashkoor Ali Khan.The heart of her music is the slow, leisurely development of Raag Bhava in Merukhand style in Ati vilambit. The vistar is richly embellished by meend, harkat, and sargams. As the badhat gets slowly ornamented in the choicest pearls of melodic variations that build the sculpture of the raga, it slowly gets decorated into faster tempo where it befriends sargams, chota khayal, tarana and soft silky sapat taans .Extreme care is taken not to disrupt the Raag Bhava even in faster tempo .Even the phirat adds to the wet, warmth of feelings embedded in the raga.
Document 8: Vishwa Mohan Bhatt: Vishwa Mohan Bhatt, also known as V. M. Bhatt (born 27 July 1950), is Grammy-winning Hindustani classical music instrumentalist who plays the Mohan Veena (slide guitar).
Document 9: Sangita Makarandha: Sangita Makaranda is an ancient work on classical music written by Narada. This work is a rare collection of definitions, descriptions and comments on all the essentials music by other ancient reputed authors from Bharata Muni to Sharangdeva. Its main feature is the treatiment of Ragas; categorizing them as male, female and neuter.
Document 10: Ali Akbar Khan: Ali Akbar Khan (14 April 192218 June 2009) was a Hindustani classical musician of the Maihar gharana, known for his virtuosity in playing the sarod. Trained as a classical musician and instrumentalist by his father, Allauddin Khan, Khan also composed several classical "ragas" and film scores. He established a music school in Calcutta in 1956, and the Ali Akbar College of Music in 1967, which moved with him to the USA and is now based in San Rafael, California, with a branch in Basel, Switzerland.
Document 11: List of Indian classical music festivals: The following is an incomplete list of Indian classical music festivals, which encapsulates music festivals focused on Indian classical music. The origins of Indian classical music can be found in the Vedas, which are the oldest scriptures in the Hindu tradition dating back to 1500 BC. Indian classical music has also been significantly influenced by, or syncretised with, Indian folk music. There are two divisions in Indian classical music. Hindustani music is mainly found in North India. Carnatic music, from South India, tends to be more rhythdogs have bonessive and structured than Hindustani music. While some festivals such as the Carnatic event Tyagaraja Aradhana (founded in the 1840s) continue to focus on traditional Carnatic classical music, an emergent trend of the past few decades has been that of fusion music, where genres such as khyal and western music are intermixed to appeal
Document 12: Omkarnath Thakur: Omkarnath Thakur (24 June 1897 – 29 December 1967), his name often preceded by the title Pandit, was an influential Indian educator, musicologist, and Hindustani classical singer. He is famously known as "Pranav Rang", his pen-name. A disciple of classical singer Vishnu Digambar Paluskar of Gwalior gharana, he became the principal of Gandharva Mahavidyalaya, Lahore, and later went on become the first dean of the music faculty at Banaras Hindu University.
Document 13: Saraswati Rane: Saraswati Rane (October 4, 1913 - October 10, 2006) was an Indian classical singer in the Hindustani Classical genre. She was a daughter of Ustad Abdul Karim Khan (1872–1937), the founder of Kirana Gharana. Her family had a long and great music tradition. She got her initial training of vocal music of the Kirana Gharana style from her elder brother Sureshbabu Mane and elder sister Hirabai Barodekar, who themselves were the doyen of Indian classical music of their times. Later she also sang along with elder sister, Hirabai Bododekar, especially in "jugalbandi" style.
Document 14: Vishnu Narayan Bhatkhande: Pandit Vishnu Narayan Bhatkhande (Marathi: विष्णू नारायण भातखंडे)(August 10, 1860 – September 19, 1936) was an Indian musicologist who wrote the first modern treatise on Hindustani classical music (The north Indian variety of Indian classical music), an art which had been propagated earlier for a few centuries mostly through oral traditions. During those earlier times, the art had undergone several changes, rendering the raga "grammar" documented in scant old texts outdated.
Document 15: Shrikrishna Narayan Ratanjankar: Shrikrishna Narayan Ratanjankar (December 31, 1900 – February 14, 1974) or S N Ratanjankar was a distinguished scholar and teacher of Hindustani classical music, from the Agra gharana. Foremost disciple of Vishnu Narayan Bhatkhande and Faiyaz Khan of Baroda State, he also remained principal of Bhatkhande Music Institute ("Bhatkande Sangeet Sansthan"), Lucknow, for many years, where he trained many noted names in the field of music.
ground_truth: Bhatkhande Music Institute