Treatment is making a welcome return after taking maternity leave at the end of last year.

Few can claim to be as old school as tonight's headliner, Bob Jones. The good doctor began his career back in 1967, being among the first DJs to play jazz aimed at the dancefloor. He claims music keeps getting better with age.

"When I was young I knew black music through books and dictionaries," says Jones. "As I grew older and my mind opened up, I realized it was all about feeling.

"I found feeling and soul in many things, especially black music, whether that was funk, soul or jazz. It's all about feeling. It made me feel the spiritual thing."

He has shared that feeling at all 37 Southport Weekenders, his The Surgery and Lift nights in London and on a host of compilations, most notably Stop And Listen, Soul Spectrum and Jazz Spectrum for BBE.

Jones' encyclopaedic knowledge, boudless enthusiasm and affable demeanour have seen him helm shows for Kiss FM and BBC Radio London, write countless sleeve notes and star in Channel 4's New Soul Nation documentary.

Among his own productions are two albums as East West Connection, including a track written with his friend Terry Callier and a collaboration with old mate Ashley Beedle, as Universal Jones. Motown requested he mix The Temptations hit The Jones's and he has also produced for Al Green and Bobby Womack.

"The amazing thing is that when you meet people for the first time, even though you know them only by name, it feels like you've been knowing them for years," he says of his many famous friends. "They reach for you, you reach for them."

Jones has moved with the times without abandoning his first love, working as a journalist, setting up two labels - BOB Black On Black and Chillfunk Records - and playing the Tribal Gathering and Creamfields festivals.

"Now there are two Dr Bob Jones hearts," he explains. "One is soulful dance, which is house music, and the other is a roots-retro heart, with the old soul and the old jazz."

At Treatment he will undoubtedly be focusing on the latter.

King Chubby J (pressure Drop) and Ion Mighty are also on the bill, promising "lots of soul, funk, hip-hop, northern soul, reggae and disco".

10pm-2.30am, £8 and £6 before 11pm and advance. Call 01273 647100.