http://therisingstorm.net/tandyn-almer-along-comes-tandyn/is a review of this album that includes mp3s of a couple of the tracks....
http://wfmu.org/playlists/shows/49655 also has "Victims Of Chance" from it. The liner notes to the release suggest - or this was Tandyn's belief anyway - that Dave Hubert, the head of his publisher Davon Music, took some of his simple voice-and-piano demos across the Atlantic during a business trip, and had unknown British and European musicians overdub on them. That would, naturally, have violated the US, UK and European musicians' union rules of the day a thousand times over, so unless some oldster who worked at Davon then could confirm it, doubtful we'll know for sure if it was the case.
As I said before, the main intersection of the package with the BBs is that Tandyn talks in the liner notes about playing two pianos with Brian in a room in UCLA's music building, plus his suggestion that Van Dyke was looking for a way to slip cannabis-related wordplay into songs. (Hard to say if that's true, given Van Dyke's history with the devil weed. I seem to recall some interview where he said the very first time he toked up, he heard the cops crashing in downstairs, just like he was Robert Mitchum or something, and he only narrowly avoided getting the cuffs slapped on.)
But it does have Tandyn's keyboard playing, and his way with the ivories, like Van Dyke's, is quite creative and very individual. So the record is definitely worth some listens despite its humble demo origins.