BRIJ BUSHAN KABRA / SHIVKUMAR SHARMA / HARIPRASAD CHAURASIA - Call Of The Valley LPShivkumar Sharma, the guitarist Brij Bhushan Kabra, and flutist Hariprasad Chaurasia were all aged about 30 when they made Call of the Valley. Shivkumar Sharma, who had made his first solo album in 1960, was responsible for establishing and popularizing the instrument in Hindustani classical circles. Kabra was also having to prove himself because of the guitar's Western and Indian popular music associations Chaurasia's problem was the wide popularity