Philosopher Nick Smith (Sydney) kindly tipped me off to this great Australian band that never really made it outside Australia, though "the Masters" (as they were known locally, no apostrophe!) had several top 20 hits in Australia from the mid-60s through about 1971 (e.g., this lip-sync version of "Turn Up Your Radio" from 1970)–they started as more of a "garage rock"-turned-pop band, though by the time of 1971's fabulous Choice Cuts (from which both tunes below come), they had a different hard blues rock sound, more evocative of Ten Years After (think A Space in Time) (Choice Cuts was, in fact, recorded in late 1970 in London).   Nick Smith recommended the live version of "Michael" from Choice Cuts, which is definitely worth a listen:

And here's another one from that album that caught my fancy, "I'm Your Satisfier":

I'm sure I'll revisit Masters Apprentices in future posts.  A great discovery!