The Hitch Hiker's Guide to the Galaxy notes that Disaster Area, a plutonium rock band from the Gagrakacka Mind Zones, are generally held to be not only the loudest rock band in the Galaxy, but in fact the loudest noise of any kind at all. Regular concert-goers judge that the best sound balance is usually to be heard from within large concrete bunkers some thirty-seven miles from the stage, whilst the musicians themselves play their instruments by remote control from within a heavily insulated spaceship which stays in orbit around the planet - or more frequently around a completely different planet.
Their songs are on the whole very simple and mostly follow the familiar theme of boy-being meets girl-being beneath a silvery moon, which then explodes for no adequately explored reason.
Many worlds have now banned their act altogether, sometimes for artistic reasons, but most commonly because the band's public address system contravenes local strategic arms limitation treaties.
This has not, however, stopped their earnings from pushing back the boundaries of pure hypermathematics, and their chief research accountant has recently been appointed Professor of Neomathematics at the University of Maximegalon, in recognition of both his General and Special Theories of Disaster Area Tax Returns, in which he proves that the whole fabric of the space-time continuum is not merely curved, it is in fact totally bent.
Down on the dry, red world of Kakrafoon, in the middle of the vast Rudlit Desert, the stage technicians were testing the sound system.
That is to say, the sound system was in the desert, not the technicians. They had retreated to the safety of Disaster Area's giant control ship which hung in orbit some four hundred miles above the planet, and they were testing the sound from there. Anyone within five miles of the speaker silos wouldn't have survived the tuning up.
If Arthur Dent had been within five miles of the speaker silos his expiring thought would have been that in both size and shape the sound rig closely resembled Manhattan. Risen out of the silos, the neutron phase speaker stacks towered monstrously against the sky, obscuring the banks of plutonium reactors and seismic amps behind them.
Buried deep in concrete bunkers beneath the city of speakers lay the instruments that the musicians would control from their ship, the massive photon-ajuitar, the bass detonator and the Megabang drum complex.
It was going to be a noisy show.
Aboard the giant control ship, all was activity and bustle. Hotblack Desiato's limoship, a mere tadpole beside it, had arrived and docked, and the lamented gentleman was being transported down to the high vaulted corridors to meet the medium who was going to interpret his psychic impulses on to the ajuitar keyboard.
A doctor, a logician and a marine biologist had also just arrived, flown in at a phenomenal expense from Maximegalon to try to reason with the lead singer who had locked himself in the bathroom with a bottle of pills and was refusing to come out till it could be proved conclusively to him that he wasn't a fish. The bass player was busy machine-gunning his bedroom and the drummer was nowhere on board.
Frantic inquiries led to the discovery that he was standing on a beach on Santraginus V over a hundred light years away where, he claimed, he had been happy for half an hour now and had found a small stone that would be his friend.
The band's manager was profoundly relieved. It meant that for the seventeenth time on this tour the drums would be played by a robot and that therefore the timing of the cymballistics would be right.
On a different frequency, the sub-ether receiver had picked up a public broadcast, which now echoed round the cabin.
' ... fine weather for the concert here this afternoon. I'm standing here in front of the stage,' the reporter lied, 'in the middle of the Rudlit Desert, and with the aid of hyperbinoptic glasses I can just about make out the huge audience cowering there on the horizon all around me. Behind me the speaker stacks rise like a sheer cliff face, and high above me the sun is shining away and doesn't know what's going to hit it. The environmentalists lobby do know what's going to hit it, and they claim that the concert will cause earthquakes, tidal waves, hurricanes irreparable damage to the atmosphere, and all the usual things that environmentalists usually go on about.
But I've just had a report that a representative of Disaster Area met with the environmentalists at lunchtime, and had them all shot, so nothing now lies in the way of ...'
(Douglas Adams, "The Restaurant at the end of the Universe")