For those unaware that progressive rock is still flourishing, (if not promoted by the US music industry,) you can peruse this site:
http://www.progarchives.com/There are a lot of samples to be heard there, as well. Both old, that you may never have heard of, and new bands are listed there. Some were old and then later reformed, to play again.
Be warned, prog ranges from new age style, almost elevator music, to pretty hard rock metal thrash, with folk, jazz, and classical bits added, and everything in between. Part of the progressive-ness, if you will, is that some artist somewhere will try to mix styles and sounds in a new and different way. It isn't always personally palatable. But, rather amazing what can work out, and certainly interesting. There are some modern bands that openly attempt to mimic the artists of the 70's, yet still sound fresh and interesting, bringing new technology and recording techniques into the process.
You can hear far more variety from internet radio sites such as :
http://auralmoon.com. And for more "edgier" prog leanings,
http://www.morow.com/.
You might also try :
http://www.last.fm/listen/globaltags/Progressive%20rock#pane=webRadioPlayer&station=%2Flisten%2Fglobaltags%2FProgressive%20rock...Just to listen to something you simply won't hear on the usual airwaves.
FYI, upperlake, I create new "recipes" almost every time I cook, which is daily since I retired. Standing joke is that if you like what I made to eat, enjoy the moment, 'cause you'll never have it again. I forget the "recipe" shortly after I make it. It'll be just as good next time. But, it won't taste exactly the same. I don't measure ingredients, beyond "some" of this, a "Dash" of these, and "bunch" of that, and a "goodly" amount of whatever is found in the kitchen, or garden.
The only recipes that must be measured are bakery type goods, like cakes, where ratios must be closely controlled.
Cheers,