There are occasional days when the Royal Festival Hall really feels like the people's palace it was always meant to be – and yesterday, with its free concert of live improvisation mixed with dubstep and electronica in the RFH bar, was absolutely one of them. Rave kids, pensioners, parents with babes in arms and some particularly energetic school-age children all proved that given the right context music the border between “challenging” music and entertainment is more porous than some might like to believe.

Immediately following the death of radio DJ John Peel in 2004, it became clear very rapidly that there was no obvious heir apparent. With so many specialist shows on the station, nobody ran the full gamut of leftfield and underground music in the same way that Peel had. But if anyone comes close, it is Mary Anne Hobbs.

Londoners, we know, can be spoilt. Certainly the crowd, predominantly of nerds in rare and expensive trainers, at the Lightbox last night didn't seem to be overly bubbling with enthusiasm despite an exciting lineup of talent and astonishing surroundings. The main dancefloor area of Lightbox lives up to the club's name, being an arched space with the entire wall/ceiling surface covered in colour-changing LED lights that allow pictures and patterns to dance across the room. 

Glasgow-born, south London resident Steve Goodman – better known to discerning lovers of modern music as Kode 9 – has a unique and privileged position in relation to the ever-shifting UK dance music underground.  In the mid 90s he formed part of the slightly cultish Cybernetic Culture Research Unit (CCRU) founded by Sadie Plant and Nick Land at the University of Warwick, where he gained a PhD in philosophy.