Derek Bailey plays electric guitar plus VCS3 synthesiser on Where is the police?; on Christiani Eddy he plays electric guitar unamplified and on The squirrel and the ricketty-racketty bridge he plays two acoustic guitars at the same time (not double-tracked). The improvisations are on electric guitar.' Recorded February 1971; equipment and recording Hugh Davies and Bob Woolford. Improvisations 4, 5, 6, and 7 and the three compositions were previously released on Incus LP 2 in 1971. In 1978 the record was re-released as Incus 2R with the improvisations replaced by Improvisations 3, 8, 9, 10, 11, and 12. Incus CD10 brings all the material from the two LPs together. Improvisation 5 was released on the Compilation CD “Not necessarily English music” on EFM CD 036 in 2002.