Input (grade 13): Nusrat Fateh Ali Khan (, October 13 1948 - August 16, 1997), was a legendary Punjabi musician, primarily a singer of Qawwali, the devotional music of the Sufis (a mystical tradition within Islam).
Output (grade 10): He was a singer of qawwali, the devotional music of the Sufis (a mystical tradition in Islam).