Some fine detective work, Chief. I would have thought Joni would be up there, if only because Dave's covered every track off Court & Spark over the years -- then again, his love of that album's seemingly dissipated over the years and may predate the Shraytabase altogether.
39 Steely Dan songs, though. That's kinda remarkable. As is the Police's count, accumulated over, what, a six-year career? 31 songs must constitute about half their catalog.