The mixing for this song was very complicated as were some of the other songs. the reason was that on the original recordings they were running out of tracks and consequently there were many instruments etc. on the same track which had to be fitted into the final mix and they needed individual treatments eq. etc. So i had to copy those parts onto another 24 track to give them there own track so that I could treat them individually {I hope this is making sense} and so we are now running two 24's in lock to make the mixing process easier, the mixes I guess took quite a long time to finish. I can only assume that the acoustic guitar sound was with the Fairchild 660. {Side note you have to remember that this all happened some forty years ago and I'm answering this as best as my memory will allow}