Originally Posted By: Charlie Fogle
Bell engineers sped up Shannon’s vocals to nearly one-and-a-half times its original speed.

OK, this is "Runaway" slowed down to 67% tempo, which, if the above is true, would be the original speed:

https://soundcloud.com/mark_hayes/runaway-at-67-tempo

The Musitron solo is at 01:44.

It's pretty obvious this wasn't Del's actual singing. But that Musitron solo does sound like this here could have been the original performance.

I'm guessing the "one-and-a-half times" is true of the Musitron but not the voice (which, according to Wikipedia, was only tweaked a semitone.)