I am currently wrapping up research for an article about Rudy Van Gelder's recording and mastering methods. I am confused about something related to the infamous A Love Supreme "master" tapes, and I was hoping someone could help. The way I understand the history of the situation is as follows: in 1964, Van Gelder recorded the album to two-track tape only, then created both mono and stereo lacquer masters at Englewood (as he would with any Blue Note title). He would then have mailed these lacquers along to the pressing plant for pressing--again, just as with any Blue Note record. If he sent lacquers to the plant for ALS, there doesn't seem to be any reason why Bell Sound or ABC would need their own tape copy of Van Gelder's tape, right? So my questions are: 1. Was it common practice for ABC/Impulse to make dubs like this, or was it simply the result of something like, say, needing to press more copies of the album because it became unexpectedly popular? 2. Would Bell Sound/ABC have made stereo and mono dubbed masters from Van Gelder's two-track master? 3. Where did his master tapes "go" after he made the lacquers? The reason I ask these questions is because it appears that a mono master tape resurfaced for a 1963 Coltrane-Hartman session that was used in a 2004 CD reissue remastered by Van Gelder:http://forums.dv247.com/mastering/7...oses-mono-coltrane-hartman-sacd.html#post3757. This is obviously confusing because everybody is under the impression that he abandoned full-track tape back in 1958--which makes sense. Any thoughts?