Many unreleased recordings by both groups exist and may come out at some point.

Tracks 4, 7, 9 and 16 are previously unreleased recordings.

It contains mostly old, unreleased recordings and at least one made by telephone in calls from prison.

The album included performances from live shows and previously unreleased recordings.

The second was the first of three planned releases covering early, unreleased recordings.

Also included are previously unreleased live recordings of both tracks, but in reverse order.

Tracks 1, 2, 3, 4 and 10 are previously unreleased alternate recordings.

Tracks 5, 6, 8, 10, 11 and 12 are previously unreleased alternate recordings.

In addition, there are other rare, unreleased recordings from various points in his career.

The compilation also contains two previously unreleased early recordings from 1971 and 1972.