There's been only one commercial recording but it is worth noting that Cadensa.bl.uk lists three or four broadcast recordings of this work (that have been made for the BBC) in their archives. Eric 00:38, 19 October 2011 (UTC) (The Tunnell duo, performing in 1975, take 26' 30" over the work; Christopher van Campen and John Constable in 1993 took 25' 30" (can't interpret the information they give about the Silver duo performance.) This would move the average duration up a little if included, I think. Eric 00:48, 19 October 2011 (UTC)
