Sónar 2012 is honoured to present some of the most important figures on the underground scene in recent years, who are outstanding in terms of their extensive knowledge and are renowned selectors when they get behind two turntables and a mixing desk.

Daniel Miller is one such figure. He pioneered the use of synthesizers with his project The Normal and is the man behind Mute Records - an essential label in understanding the ground-breaking trends in electronica and pop of the last 35 years. He will be giving us a session that is bound to bring together styles and strands of musical action for the enjoyment of those present.

Like Miller, Britain's Trevor Jackson is one of those multifaceted characters that stands out due to their ability and exquisite taste: a producer, remixer and the head of the Output label (The Rapture, LCD Soundsystem, Maurice Fulton, Colder), he recently curated the compilation of post-punk and proto-electronica "Metal Dance" for the label Strut; his visit to Sónar gives us the opportunity to listen to a dj with panoramic vision, experience and an extensive catalogue of sounds inside his head.

Talking of LCD Soundsystem: James Murphy, its charismatic leader and founder, the boss of the DFA factory and a compulsive collector of hidden dancefloor music gems, returns to Sónar to delight us with one of his always exquisite sets of high altitude funk-disco-house.

But if there is one dj at Sónar 2012 who can be considered a cult figure, that honour undoubtedly goes to DJ Harvey. Harvey, who was born in Cambridge and has lived in the United States for several years, is a djs' dj, a very influential figure in the recovery and reappraisal of disco music and garage house, and a marvellously unpredictable selector, whose sessions never seem to bear any resemblance either to each other or to those of any other contemporary dj.

Finally, we must mention two outstanding characters from the new currents of British electronic music who occupy very different niches: first, Steve Goodman, better known as Kode9, the head of the essential Hyperdub label, an excellent producer and a dj with impeccable technique, who uses his sessions to bridge the gap between dubstep, UK funky, drum'n'bass and juke with consummate skill. Meanwhile, and for the sixth time at the festival, we will have the chance once again to enjoy Mary Anne Hobbs, who will be accompanied by the brilliant young Blawan. Hobbs is renowned for her popular radio shows, and is now one of the world's most important djs due to her passion, extensive knowledge and proven good taste.