New article at The Hindu about the qawwali devotional music of Abida Parveen mentions a sufi-vedanta connection.

No, she is not a saint. But when she sings, the saints seem to speak to us through Abida Parveen’s electrifying voice. A voice that alternates weary grief with radiant joy, quiet trance with dancing rhythms, until the individual quest turns into a binding community experience.