Boris is one of the most prominent members of the generation which is widely considered the "founding fathers" of Russian rock music. Due as much to his personal contribution as to the undisputed and lasting success of his main effort, the band Aquarium (active since 1972 until today), he is a household name in Russia and much of the former Soviet Union. Grebenshchikov is colloquially known as BG (Russian: БГ) after his initials. He is often called the 'Grandfather of Russian Rock'.

This amazing rock ‘n’ roller is a dedicated Buddhist who blessed us to record with GR&TM.

He has contributed to the following Raven albums:

Refuge
Bardo