Two Singapore rock bands of the 1970s and 1980s, Heritage and Zircon Lounge, showed tendencies to create music beyond conventional rock idioms. In the late 1980s, Corporate Toil baited audiences with noisy electronic performances influenced by industrial/new wave bands like Suicide or Einstürzende Neubauten. In the 1990s, Kelvin Tan produced literally dozens of albums of avant folk and improvised guitar, as well as assembling the short-lived Stigmata featuring bassist Ian Woo and saxophonist Kelvin Guoh. Zai Kuning, largely known as a visual artist and dancer, lived for a period in Japan and collaborated musically with Tetsu Saitoh, a famed Japanese cellist. Zai also created his own form of Malay folk and gypsy blues music, singing incantations in his deep tenor while playing a loose form of open tuning guitar.