What do you get if you play the 5th, 7th and 9th harmonics in sequence on sine waves? Well if you start at 1000Hz you’ll hear a very well known BT test tone. If you play them all together you get the “lesser” chord of the Bohlen-Pierce scale. I named my electronics piece after the BT training centre in Suffolk – an iconic building housing scientists and engineers. I would like to perform it for them one day, with 12 speaker diffusion. I’m afraid I can’t post it here, because it is made of sine waves and the low ones get “compression-codec”-ed out.