I got up this morning and check this thread again just to make sure I was not just dreaming, and that the Winter brothers did indeed get some of their prime period albums up for streaming in Quadraphonic 4.0 discreet surround sound!!!
I would have expected that any and all 4.0 and 5.1 surround mixes that would appear for streaming would have been mixes previously released on a silver disc in the last 22 years or so. And not be the exclusive material we are seeing from the 70s quad list including those so-called QUAD-BLOCKED titles. It seems Apple are paying no attention, and having no fear or concerns about what MFSL is doing, no concerns the BGO did Winter two-fers, no concerns that an SACD appeared 20 years ago and is long out of print anyway. Hell, Apple might even beat Sony Japan to Caravanserai in 4.0 if they don't get with it, or have a "hold" on it in place already.