In 1991 I wrote a short article comparing three ‘live electronic’ ensembles based in the UK and active in the late 1960s and 1970s (one into the 1980s) (Emmerson 1991). It was only in the final stages of preparation of this paper for presentation at the EMS05 conference in Montreal that I realised that the death of Hugh Davies on 1 January 2005 meant that a key member of each of the three ensembles was no longer with us. This article is thus dedicated to Barry Anderson (1935–1987, founder and director of the West Square Electronic Music Ensemble), Tim Souster (1943–1994, co-founder of Intermodulation) and Hugh Davies (1943–2005, founder member of Gentle Fire). The fact that they can no longer describe, elucidate and explain the repertoire that they created is directly pertinent to this paper. While its practitioners must inevitably (though hopefully not so prematurely) move on, as we celebrate Mozart's 250th birthday with performances of the vast majority of his compositions, we must ask ‘in what form live electronic music can live on’