Stream Pink Floyd​’s Unreleased 15 Minute Version Of ‘Interstellar Overdrive’ Due Out This Record Store Day​ as a 12″ Single*

Earlier this month The Future Heart​ reported Pink Floyd would be releasing an ‘Interstellar Overdrive’ vinyl 12” on Record Store Day, having confirmed from a music distributor it was listed as “180 Gram, previously unheard / unreleased recording from 1966, poster, postcard, limited to 4000, indie-retail exclusive.” That description was mysterious though. What exactly was this recording? Is there still legitimately “unheard” Floyd recordings worthy of issue?

With the official release of Record Store Day listings last week we got some answers. Legacy Recordings’ March 20th press release reads:

“The mono single will be a one-sided 12″ 180-gram black vinyl and will play at 33 1/3 RPM. The single will come with a fold-out poster and an A6 postcard featuring a classic image of the band taken when they were recording their debut single, ‘Arnold Layne’. Written and performed by Syd Barrett, Roger Waters, Richard Wright and Nick Mason, ‘Interstellar Overdrive’ is an unheard recording from 1966, running at close to 15 minutes long. The original recording was done at the Thomson studio in Hemel Hempstead, Hertfordshire on November 31, 1966, before the band were signed to EMI.”

So there we have it: the ‘Interstellar Overdrive’ out next month was recorded November 31, 1966 at the Thomson studio in Hemel Hempstead, Hertfordshire.

Obviously it wasn’t though: there are only 30 days in November. What then is the correct recording date?

Referring to Glenn Povey’s Echoes: The Complete History Of Pink Floyd – which includes a day-by-day, encyclopedic log of every known Floyd concert, recording session, rehearsal, radio show, photo shoot, etc – there’s of course no entry for November 31, 1966. There is however an entry for October 31, 1966 (excerpt right) claiming the band recorded that day at…. you guessed it, Thomson Studio in Hemel Hempstead. Is it just coincidence? Possibly. But considering (A) it’s the only mention of that studio in the entire book, along with (B) the date in the press release is obviously wrong and (C) the similarity in the two stated dates, it seems most likely at some point there was a typo (or otherwise confusion) between 31/10/66 and 31/11/66.

What’s more, Povey’s entry for that session – matched by accounts in Julian Palacios’ Syd Barrett & Pink Floyd: Dark Globe and several other sources – says a version of ‘Interstellar Overdrive’ recorded at the Thomson session “was utilised by film-maker, and Cambridge contemporary, Anthony Stern for his fifteen minute ‘day-in-the-life-of’ documentary San Francisco.”

That the version in the documentary is the same length, was recorded at the same studio (when there is only one known Floyd session at that studio), on what appears to be the same day (despite the confusion over that aforementioned date and another non-existent date) strongly suggests the Record Store Day release is the version used in Stern’s film. If that’s the case, it’s not accurate to call it “unheard” (as various media outlets are, following the lead of the press release and Record Store Day listing) though this documentary is obscure enough – even among Floyd fanatics – that it practically is. If this version is known at all by Floyd fans it’s most likely as the track labeled “Interstellar Overdrive, 10/31/66, demo” on disc one of The Laughing Madcaps’ ten disc bootleg “Have You Got It Yet?” Certainly it’s never been officially released on vinyl (or any other format), just used in this rarely-seen film from which its been bootlegged. Perhaps October 31st wasn’t the exact date of this session. After all, whenever this session was precedes Pink Floyd having any notoriety, or even being signed to a label. There was thus no reason to keep records at this point; consequentially confusion over specific details are bound to happen. It’s to be expected that Povey would note the October 31st date “has been documented, but not substantiated.” But even if that date is off, all signs still point to the recording heard in San Francisco being the same version that will be released on Record Store Day. To reiterate in full disclosure, it can’t currently be said with absolute certainty that these two versions are one in the same (thus the asterisk in this article’s headline), but given the above detailed similarities it’s as close to confirmed as can be at this point.

Either way, chances are you haven’t heard it and that needs to be remedied as it’s a fantastic 15 minutes voyage with Syd Barrett​ and The Pink Floyd….

So without further ado about nothing, here is the 15 minute experimental film San Francisco by Syd’s friend Anthony Stern, soundtracked by the 15 minute version of ‘Interstellar Overdrive’ that can be nearly confirmed as the one set for release on Record Store Day:

Pink Floyd’s managers at the time, Peter Jenner and Andrew King, recall the Thompson Studios session in David Parker’s Random Precision: Recording the Music of Syd Barrett 1965-1974Jenner is quoted in the book as saying the October 31, 1966 dating of the session “would be about right.” Among other details, they also recollect:

Andrew King: “I remember going down to this funny little studio, which was sort of in the back bedroom of this guy’s house down in the sort of High Wycombe way. Buckinghamshire or somewhere. And he turned out to be rather a nasty piece of work, but at the time it was pretty exciting. “

Peter Jenner: “It was pretty primitive, I would think it was only stereo, I would imagine it was 2-track, and then bounced from track to track if anything needed to be bounced. It wouldn’t have been 4-track, it wasn’t that advanced. It might have only been mono with two machines, I don’t know. I mean for us then it was lots of wires and microphones and cables and things, it was ‘a studio’ you know…  Basically it was in someone’s front room sort of thing. I don’t know where we got hold of the guy, I can’t remember how we found him, or where, but there weren’t that many cheap studios around at the time… I think the thing that was interesting was ‘Interstellar Overdrive’, because that was a very good version of ‘Interstellar Overdrive’ because it was very ‘live’. It was as they played it live… All of the recording was probably done on single-track, live in the studio, with maybe a vocal overdub or something, going from machine to machine.”


Pink Floyd’s London 1966-1967 is also out Record Store Day. Previously available on DVD, CD and very briefly vinyl, this new pressing marks its first time as a 12′ picture disc. Taken from the hippie flick cult classic Tonite Let’s All Make Love in London, it pairs a near 17 minute version of “Interstellar Overdrive” (listen below or click here to watch the scene from the film) on side A with “Nick’s Boogie” (click to watch) on the flip.

Floyd fans will also want to be on the lookout for The Claypool Lennon Delirium​’s “Lime and Limpid Green” 10″ covers EP out Record Store Day…
…it includes their version of “Astronomy Domine.”


  1. I do NOT believe that this is the demo version of “Interstellar Overdrive,” despite many claims to the contrary. Most likely, this version was recorded at the Winterland Auditorium on November 10, 1967. It is played very fast, which tends to indicate that the band had performed it many times. (Compare it to the version from the film “Tonight Let’s All Make Love in London,” for example, which is rather slow.) Also, how would an American documentary film-maker have access to a demo version of a song by an (at the time) obscure British band? Wouldn’t it be more likely that he could get a live concert recording of a song from his home town? Pink Floyd played in San Francisco in November 1967, and it seems probable that some recordings exist.

    But the best evidence that this version is NOT the demo version is from the Canadian Broadcasting Company (CBC) interview that was conducted with Pink Floyd in about December 1966, wherein the reporter says that Pink Floyd “have yet to make their debut on record.” Pink Floyd’s first single, “Arnold Layne,” was recorded in January – February 1967, and released in March 1967. Therefore, the interview MUST have been recorded before March 1967. Yet the interview features a (rather slow) version of “Interstellar Overdrive” behind it. What version of “Interstellar Overdrive” would have been available for the CBC to add to their interview in late 1966? It would have to be the demo that was recorded on October 31, 1966. THAT is the demo version, NOT this.


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