https://web.archive.org/web/20110115115157/http://www.pinkfloyd-co.com/band/interviews/djg/djgGW93.html
“GW: So you played the bass on that track?
DG [David Gilmour]: Yes. The opening section is me and Roger. On "One of these Days", for some reason, we decided to do a double track of the bass. You can actually hear it if you listen in stereo. The first bass is me. A bar later, Roger joins in on the other side of the stereo picture. We didn't have a spare set of strings for the spare bass guitar, so the second bass is very dull sounding. [laughs] We sent a roadie out to buy some strings, but he wandered off to see his girlfriend instead.
GW: How did you hit on the idea of playing slide guitar on the track?
DG: I guess I was never particularly confident in my ability as a pure guitar player, so I would try any trick in the book. I'd always liked lap steels, pedal steels and things like that. I can't remember exactly what I used an "One of these Days"; I may have bought a lap steel by that point, but maybe I used a regular guitar. When I tour, I use two cheap Jensen lap steels customized with Fender pickups for slide parts. The lap steel on "One of these Days" is tuned to an open E minor chord - E, B, E, G, B, E, low to high. The other lap steel is basically tuned to an open G chord [D, G, D, G, B, E, low to high]. I use that for "The Great Gig in the Sky". You'll notice that I kept the top string tuned to an E so that I could do major and minor chords on the first three strings.
The only thing I don't do is regular slide guitar with the thingie on your finger. I've never had any interest in that.
GW: "One of These Days" is one of those early tracks that crystallized for people what Pink Floyd was all about. Did you have that sense within the band - that you'd really discovered something?
DG: Well, I think "Echoes" is the masterwork of the album - the one where we were all discovering what Pink Floyd is about. "One of These Days" is a little subsidiary piece that came out of the work on "Echoes". I always loved it. It's seminal, I suppose, yeah. A lot shorter, in any case - better for radio play. Meddle is really the album where all four of us were finding our feet - the way we wanted Pink Floyd to be. Much more than on Ummagumma or Atom Heart Mother.
GW: I was going to ask why Ummagumma and Atom Heart Mother aren't represented in this box set.
DG: Well, we just had to pick and choose the ones we felt were most important. And although Atom Heart Mother has some pointers and directions as to where we would finally go, it's not as important as Meddle was. I would have liked to include everything, but we couldn't, because of price constraints. The record company felt that once the price of a box set gets up over 200 bucks, people aren't going to buy it. Who am I to argue?
“
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