Nusrat Fateh Ali Khan was the greatest qawwali singer of his generation as well as the most famous. In 1989, Ali Khan and his ensemble gave a unique performance at the Kufa Gallery, in London, England under the auspices of the Sama Performing Arts Network (SPAN). The qawwalis were sung in a traditional format and in a distinctly classical idiom. The full concert is available on four CDs, this being the fourth installment.