Daft Punk didn't use synthesisers for their 'Tron: Legacy' soundtrack because they wanted to make it "timeless."
The French dance duo - whose score is the first recorded material they have released since 2005 album 'Human After All' - were attracted to the challenge of making the soundtrack to the Hollywood film without their usual technology.
Tomas Bangalter said: "We wanted to make it timeless. A cello was there 400 years ago and will be still here in 400 years but synthesisers that were invented 20 years ago will probably be gone in the next 20.
"Daft Punk would not exist if there was no technology. So here was a way of saying: Okay - if there was no technology, let's see what we could have done. This is what Daft Punk would have done in 1750."
His bandmate Guy-Manuel de Homem-Christo agrees and says the pair enjoy the challenge of experimenting with their sound.
He told Dazed & Confused magazine: "We are definitely excited by music but just trying to constantly experiment. And sometimes that means going with other art forms, because you think there's more latitude to experiment with an orchestra than an 808 drum machine and synth."