Outstanding!!! I loved it. Everything about that tune (production, instrument quality, musicality) was first rate. I especially loved the piano solo. And yes, the Spectra was impressive but the musicianship displayed on that recording certainly helped it's cause. So yep, you proved your point about vintage instruments in the hands of good players.
To be fair however, what showed so well here was the representation of basic acoustic instruments (piano, bass, etc.). What the modern boards give you is a broader range of acoustic instruments as well as an even broader range of synthesized sounds (all fitted into a much more compact package). So although the sounds could past muster, the form factor would make these vintage instruments unsuitable for most gigging situations (yeah, I know. Guys still schlep B3's around....but hey, it's a B3

).
Glad you posted that though, lest we forget how good those 'oldies but goodies' could sound.
chas