 In 1978 Summers decided, as he says to Ruud Janssen in "TAM Mail-Interview #11" (see reference 2, below) "to inform myself [of]...who else was involved in the Audio Arts movement...In 1978 I travelled over to Warsaw to perform audio [at] the invitation of Henryk Gajewski and Piotr Rypson.I performed two live works there and the performances were recorded.On my return to Maastricht I assembled the first VEC AUDIO EXCHANGE cassette from works [previously] received and my own works including the two made in Poland."