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Laurie Anderson has been one of America's creative pioneers since the seventies - described variously as a visual artist, electronics whiz, poet, story teller and filmmaker.

Currently she's in the middle of a series of talks for Harvard. The first was titled the River, a multimedia mix about spending time in the slowdown and how the empty Springtime New York streets looks like there's been a war.

Big preoccupations were what propelled her into the spotlight when, in 1980, she composed a song called Oh Superman, inspired by the failed US mission to rescue American hostages in Tehran the previous year.

That led to an album Big Science, about technology and shifting attitudes towards authority and individuality.

Forty one years on, Big Science is being re-released on April 9th, in red vinyl.