Donald Satz wrote:

>Although St. Marks Passion is attibuted to Bach, there is evidently
>much skepticism that Bach wrote the work.  Does anyone know what the
>issues are surrounding this composition and its creator?

An obituary credited Bach with having composed five passions, but to my
knowledge, only two survivied: St. John's BWV 245 & St. Matthew's BWV
244.  I am unfamuiliar or ignorant of a St. Mark's BWV???.

Mark

 [From Classical Net (bach works list):

   St Matthew Passion (Picander) (BWV 244)
   St John Passion (BWV 245)
   St Luke Passion (BWV 246)
   St Mark Passion - Passio secundum Marcum (Picander) (BWV 247) Spurious

 -Dave]