Chan (pronounced "Shawn") Marshall has a reputation for turning up late and erratic performances.

But after an astonishing interview recently where she admitted to alcoholism and psychiatric treatment earlier this year, it was something of a relief to see her at all.

The Atlanta-born Cat Power singer seemed upbeat when she appeared on stage and even gave us a greeting in cockney.

But constant hand movements and wiggling around during the songs suggested some sort of nervy, compulsive behaviour. This wasn't just dancing - it was her physical reaction to an audience, and it was so odd that it prompted laughter.

Marshall has recently turned from indie to a more classic southern soul sound, and the 11-strong band provided an intoxicating backdrop on opening song The Greatest.

But her smoky voice and timeless tunes were the main attraction, so the solo part of the set with Marshall on piano was something special. She also played several covers, and the best was a jazzy reinterpretation of the Rolling Stones' Satisfaction.

Marshall was never quite satisfied with her own performance, though, making several niggly complaints about the sound. A shame, because everyone else was just spellbound by that voice.