A set of varied moods and settings – yet one that really does a wonderful job of fleshing out the Sun Ra aesthetic during these crucial years when Ra dubbed himself the "King Of The Sub Underground"! That humorous title is a reference to the fact that Ra and the Arkestra were still working with largely little mainstream exposure – despite the big growth of avant jazz at the time – and were instead working on beautiful recordings like these, often made without any thought of a larger market at all! The CD brings together material from albums originally issued with Sub-Underground in the title – also under other names as well, including Temple U – and the tracks represent the Arkestra really hitting some of their creative heights in a mix of live, studio, and rehearsal recordings. Titles include the brilliant "World Of Africa", recorded in 1968, but with a chunky groove and weird piano that almost feel like a precursor to Fela Kuti; the sublime "Love Is Always" and "Song Of Drums", recorded live with a spare group in a beautifully echoey setting; surprisingly great takes on "What's New" and "Autumn In New York", played by a small group with Ra on a slightly off-tune upright piano; the long "Cosmo Earth Fantasy" suite, with some very fierce sounds; and a nice live take on "Space Is The Place/We Roam The Cosmos", which jumps right into the groove at the start – with a pretty offbeat feel, and lots of cool vocal interplay! CD