I still think of Hanna Schygulla as the icon "in the tradition of Dietrich" manufactured by Rainer Werner Fassbinder, most blantantly in the dire Lilli Marleen where she sat on a piano wearing a basque and top hat. Fassbinder's films were a bona fide, and entertaining, attempt to understand aspects of German history through the melodramatic style of the German-derived Hollywood movies, William Wyler, Joseph von Sternberg and the rest. But their squeamy irony belongs to the cold war, and they are interesting now mainly as a record of west Germany in the days before Germany could regard itself as an ordinary modern country. Shygulla is now a cabaret performance artist. Her set, performed as part of Scott Walker's Meltdown on the South Bank and repeated on Saturday 17 June, is a song cycle with music by Jean-Marie Seignard, who also accompanies her on the piano. There was no programme, and very little other information, so I can't work out who wrote the words: some songs seem to be modern cabaret numbers, others are very self-consciously arty; Schygulla at times seems to be using the first person literally, and the texts might well be her own. She sings mainly in French, sometimes in German, and introduces each number with a partial paraphrase or translation in English, in the sort of slick but totally implausible rhymes used in the English versions of Hollaender's early songs. Schygulla's performance is an intense mixture of camp, high camp and faux naivite, surprisingly entertaining and sometimes moving. Away from the dramatizing camera, and almost twenty years later, she still looks deranged and unpredictable. But, though she is still petite and apparently in very good shape, the cryptic sexiness of her film persona seens to have hardened into the enclosed passion of a grand tragedienne. With her hair pulled back tightly and adopting the manner of Piaf, she looks disconcertingly like Margaret Thatcher or Vivienne Westwood, both strong-featured fifties beauties who have made themselves into camp icons. The first part of Schygulla's set exploits her movie-star status, starting with an allegory of a creative artist, possibly a film-maker and moving on to a direct memorial for Fassbinder and reflection on her own status. The recurring theme of the set is how people are created and destroyed, with special reference to tearing out hearts and mothers. Or life, sex and death. Some of it is very funny -- a spoken schtick about Adam and Eve discovering sex, a Jewish-mother joke disguised as a grim fairy tale -- and some of it is distiburingly intense. But it all goes like clockwork, like a movie, and the cabaret song settings are engaging in a completely separate way from the texts. The ninety minute set is perhaps a bit too long, because of the amount of material there is to take in, not because any of it is tedious. Schygulla did Lili Marlene as an encore, apparently at the request of some loyal fans. It seemed very strange after the artiness of the main performance, since it's an almost artless popular song that Fassbinder probably used because of the pun on Dietrich's first name, and to evoke a pre-Nazi mass German culture for his iconic heroine to embody among the Nazis. Schygulla sang it straight, and cryptically. She knows exactly what she is doing, but she's probably still not telling anyone else.