WHAT should tomorrow's audience expect at Fibbers in York?

"I can pretty much guarantee that this live show will include the usual borderline British Sea Power insanity, i.e. 8ft dancing polar bears on stage and fans bearing copious amounts of local foliage and greenery etc," says the Brighton indie-rock band's publicist, Simon Blackmore, of Black Arts PR.

BSP will be promoting this spring's album, Let The Dancers Inherit The Party, a record sure to make those polar bears strut their stuff. "We're not the most optimistic bunch but this is our attempt to look at things positively," says guitarist and keyboard player Martin Noble, whose parents live near the British Library at Boston Spa, incidentally.

"It was all written pre-Trump's election, when there seemed to be a lot going on with Brexit and all the talk on social media was doom and gloom, and we decided a whole record of that would have sent us over the edge. So we're looking at all that with a sense of optimism, which for us is a remarkable feat."

British Sea Power inevitably have undergone sea changes in their music-making in their 17 years together. "Your tastes will gradually shift, s that helps us progress, and sometimes you think, 'OK, we don't want to force it just to do something different', so we muddle away doing things we like, sending demos to each other, then trying to get some idea of what would work together, and this time we wanted things to go together, rather than be a patchwork quilt, so it's more like a luxury duvet."

British Sea Power's shows have never been conventional or straightforward. ""We started by doing handstands and gymnastics, but we're not so capable of that now, but we always try to bring something to the show, whether it's projections or filling the stage with things, so it's not just a black box," says Noble.

"We always try to do something that's transcendental. It was something [Pulp singer] Jarvis Cocker once said about us: 'We're always trying to reach our somewhere, but we have no idea where we trying to reach'."

Their next Yorkshire engagement will be different again, playing Leeds Town Hall at the Leeds International Film Festival on November 10, when BSP will revisit their collaboration earlier this year with the Polish festival Kinoteka. The band performed to a sold-out crowd at the London Barbican and next month they will play a specially written score for a series of classic Polish animations handpicked by the band.

"The Polish Cultural Institute have been wanting to do something with us for a while, keen for us to do shows over there, but nothing ever quite came off, but then this opportunity came along just as we were doing our new record, which meant working over Christmas, doing this as well, creating the music for ten/12 films."

British Sea Power play Fibbers, York, tomorrow and Leeds Town Hall, as part of the Leeds International Film Festival on November 10.