Several years ago, I bought a mint 45 to get the mono short version of "Beginnings." The run time of 2:50 works for me.
This is off subject... way off. But the multiple mentions of Chicago brought up a radio programming point based on personal experience.
Any time I hear a Chicago cut on radio, satellite, Pandora or wherever, I immediately punch out. I would rather hear 5 minutes of Kars4Kids than anything by Chicago. Over the years, I have found that, while I'm in a small minority, I am not unique.
Where we get to radio is in answering the old question about why some songs are played and others not, or why it seems that Eagles only had 3 hits. When we do research, and find a significant percentage of folks give deeply negative scores to certain songs, they are not playable. If it's one or two people in a project, that's not enough... but if 20% of the folks give a certain song a score below the 1-100 equivalent of a 30 or 40, we begin to wonder if it should be played at all.
And that is, in a nutshell, radio's dilemma. We can't play only your favorites, but we can try to never play ones you hate. That reduces the library from Olympic high diving depth to a wading pool!