I would call them burglars: musicians from the experimental rock, electronica and sound-art traditions who cross the genre divide, sneak into the world of classical music, pillage its more easily pillaged valuables, thieve its respectability, filch its original ideas, and sprint back breathlessly to their wide-eyed fans to show off this brilliantly clever "new" classical music (much of which is made up of techniques that George Benjamin would have grown out of by the age of six) in double quick time lest someone from classical music pins them down for long enough to inform them how rubbish

Happy Birthday, Tony! Last night the great Nigerian musician celebrated the fact that he has spent 70 years on the planet, with 52 of those years exploring – as no other drummer has explored – the humble kit drum (or drum kit if you prefer). This standard arrangement of bass drum, snare drum, toms, cymbals and percussion has been the engine behind most popular music for only a couple of decades longer than Tony himself has been bashing away at the things for.

Back in the days of acid house, it wasn't just drugs, new music and wideboy promoters with slicked-back ponytails and mobile phones the size of Essex that fuelled the party scene. Just as important was the surplus of empty commercial properties created by the recession of the late 1980s, making the setting up of soundsystems in disused warehouses and quarries a doddle. This event, part of the Ninja Tune label's ongoing 20th birthday celebration, wasn't an illicit rave as such, but its use of a previously derelict set of six railway arches in the middle of a recession went some way to recreating a bit of the old atmosphere.

Back in the days of acid house, it wasn't just drugs, new music and wideboy promoters with slicked-back ponytails and mobile phones the size of Essex that fuelled the party scene. Just as important was the surplus of empty commercial properties created by the recession of the late 1980s, making the setting up of soundsystems in disused warehouses and quarries a doddle. This event, part of the Ninja Tune label's ongoing 20th birthday celebration, wasn't an illicit rave as such, but its use of a previously derelict set of six railway arches in the middle of a recession went some way to recreating a bit of the old atmosphere.

A few years ago a friend told me that Brighton resident Nick Cave had been spotted singing "The Wheels on the Bus" at a local nursery. This might have been an apocryphal incident, but it still highlights a predicament of the older rock star. How do you deal with life's quotidian issues – the daily grind – while still rocking out? Cave’s fiendishly simple solution? Ignore the problem and do both, combining school runs by day with explosive gigs like this one last night.

Actors and musicians are always trying to swap places, often with hilarious consequences (as long as you didn't pay for a ticket). Madonna in Body of Evidence? Keanu Reeves in his inexcusable band Dogstar? I think not. But Tim Robbins is a thoughtful, conscientious kinda guy, and he can even claim a bit of a folk-singing heritage via his father, Gilbert. And he put together the impressive soundtrack for his movie Dead Man Walking. And he played a right-wing folk singer in the political satire Bob Roberts.

Mark Ronson & The Business Intl, The Bike Song (Sony Music)

There are ways and ways to make novelty retro-pop. Mark Ronson, for example, has absolutely nailed it here. This song, with its almost unbearably sunny Lovin' Spoonful-styled harmony vocals slathered over an early-Nineties pop-hip-hop breakbeat with jaunty raps from Spank Rock, should be awful – should be so calculatedly faux-naif it makes you hurl – but it's just done with so much invention, so much out-and-out glee and such great hooks that it's completely irresistible and delicious.

Hackney’s Empire is the perfect venue for pan-Atlantic producer/hipster Mark Ronson’s vehicle The Business Intl. New album Record Collection is an aural revue – with guests ranging from Eighties idols Boy George and Simon Le Bon through Wu Tang’s Ghostface Killah to Andrew Wyatt of Swedish dance-poppers Miike Snow. A former musical hall, it’s a fitting showcase for Ronson’s portmanteau sensibility. It’s as if variety was primed for a comeback at this show, the second of six smallish-venue road-test dates. In support, his Business Intl colleague, Rose Elinor Dougall, trod the boards on the heels of her recent solo album Without Why.

After only a couple of songs there are shouts from the audience to turn Mulatu up. But these people have missed the point. The clue is in the name of the instrument he's playing: the vibraphone, or vibes for short. The word "vibe" has long been slang for “a good feeling” or a mood, and that’s precisely what its role was in last night’s concert; to add some of that ambient mysteriousness intrinsic to the five-note Ethiopian scale.

I Am Kloot are a band it’s hard not to like in an almost personal way. The Manchester-based trio exude warmth, northern charm and a sense of self-contentment, seemingly impervious to the fact that they still haven’t made it as big as everyone thinks they should. Maybe that’s unsurprising. With the band’s leader in his forties, maybe it would be odder if they weren’t making music for reasons other than pampering egos. And it shows.

“Thank you for waiting. I know some of you have been waiting a long time – about seven years – but it takes me a while to get things done.” Thus did singer/songwriter Hayley Willis greet the audience at her return to active service. Two Willis albums have bookended that seven-year period: 2003's acclaimed Come Get Some, her debut for 679/XL, and its excellent follow-up, Uncle Treacle, released on 4 October on her own Cripple Creek label, for which last night's performance acted as a launch party.