[2][3] The most recent CD reissue is that of 2008 by BGO Records, catalogue number BGOCD787.

[1] Tony McPhee was one of the earliest rock guitarists to experiment with guitar controlled synthesis and Oberheim/Maestro ring modulators.

On this album he used a Hagström guitar synthesizer, a simple controller for an ARP 2600.

This allowed the guitar sound to be doubled, (but not bent by string pulls) and also required the analog synth to hold its tuning over the entire range.

[citation needed] The album closes with a tribute to John Lee Hooker.