The Time Frequency (TTF) are an electronic dance group from Scotland. The band was founded by Jon Campbell in 1990. They are one of Scotland's first techno groups. Members that TTF have included are fellow keyboard players Paul Inglis, Kyle Ramsay and later Colin McNeil. Mary Kiani was the lead singer of TTF, then Debbie Millar, and more recently Lorena Dale. The Time Frequency play gigs all over the United Kingdom, mainly in Scotland. In Scotland they usually play at Barrowlands and Rezerection.