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Jason Becker could be the greatest rock guitarist who ever lived, but there’s a good reason why you might not know his name.

In 1989, the 19-year-old prodigy was offered the biggest gig on earth – playing lead axe in David Lee Roth’s new band – just one week before he was diagnosed with motor neurone disease and given two years to live.

More than two decades later, a completely paralysed Becker is using eye movements to carry on making music.