Ah, found more infos at http://www.vhtrading.com/demos.php
"Cherokee Studios Demos
Studio/Location: Cherokee Studios, Chatsworth, CA
When: 1973 (or 1974)
Songs: Angel Eyes * Believe Me * Simple Rhyme * Take Your Whiskey Home
Available on CD: Demo Daze, Magic Mountain 1977, Mammoth Demos, Sunset Sound
These tracks are said to have Mark Stone on bass, briefly before Michael Anthony joined the band. For the time period, they are actually decent sounding. Angel Eyes features acoustic guitar by Dave. Went into circualtion in 1998."