I concluded the bass cover clip for I'm Running.
When I done it for the first time in audio format, some years ago, I believed that I heard the main bass riff doubled an octave lower (after each 2nd repeat).
Back then I used an octave effect, but now I am more inclined to the possibility of being really two basses (nothing new for Chris).
Although "Big Generator" is in its whole one of the (if not the) least generous bass-mixed Yes albums, I still am able to hear sometimes that low sounding bassline, that yet doesn't seem to be 100% identical, as if it would the case of an octave pedal. If you have by chance the bootleg "Alternate Generator" you will hear those basses a bit better.
Then I got back to Chris' interview on GW, Sep '87, where he mentioned that on one of the songs he used a A-D-G-C-F tuning. It's my belief that this could be the one - in order to play the whole riff an octave lower, fluently, with all the strings on fourths, and taking advantage of the D open string, just like he does with the original octave riff, played with A-E-A-D-G tuning.
On the A-D-G-C-F, however the C and F strings may be irrelevant, because they are never played... well perhaps they are played. It's possible that on one of the repetitions Chris begins the riff on the C & F strings, thus playing it two frets ahead, and then makes the passage to the lower octave (around 5:40). For the video I didn't do it - I just played it like the live versions that I found of some bootlegs.
The A-E-A-D-G tuning is one of the main tunings that Chris used with his Tobias 5-string. That makes it possible to play the low A's on tunes like "Love Will Find a Way" or "Big Generator". It would be interesting if Chris would reveal all tunings used on BG!
http://www.youtube.com/watch?v=FfSJnUVgtzY
(press the HD button
)Miguel
