Each track is not so much a collaboration as a joining of distinct parts. You can hear which parts are Glass and which parts are Shankar, but the glue that holds them together is the compositional genius of the two men. It does not just encompass India either, as there are Middle-Eastern motifs and scales used here, and some very Western orchestral parts.
It is very light on the sitar, and Ravi Shankar probably has more input vocally than with his sitar playing. This is orchestral music without using a conventional orchestra from the West. It is Indian music without being limited to the traditional Indian instruments and arrangements. It is World Music at its best!
Ravi Shankar, whose music has been known in the West for many years , is known for his work with Yehudi Menuhin and George Harrison among others. His musical reputation goes far beyond his exemplary sitar playing in the traditional ragas and covers much classical Indian music also.
Philip Glass, mostly known for his repetitive structures as a member of the minimalist school and for his powerful soundtracks, has gained a wider audience with classical and popular music afficionados outside of the USA.
This album works in many different ways. Despite their differing backgrounds each musician has produced memorable soundscapes which reach deeply into the history of each of the collaborators and their musical heritage and which emerge to enchant and delight the listener. It is often difficult to distinguish the individual contributions from each other in particular pieces which underscores their deep understanding and appreciation of each others work. The pieces are extremely moving and cover a whole gamut of emotions. Each composition has it's own particular feature which causes me to come back to this album again and again.
In some ways this album is greater than either of it's component parts and will be a lasting testament to the work of these two great composers.