Is this Chicago's greatest single? That's actually a rhetorical question... they had so many different styles over the years it's hard to compare them. Certainly, this is their best in the hard-rock/psych style. That opening bass line is unforgettable! It's interesting to note that this terrific recording is a brilliantly edited version of a much longer (about 2 minutes longer at 4:50) album cut. This is a copy of the pressing with the white "Columbia Records" lettering around the label edge.
Note: This beautiful copy has a drillhole and comes in a vintage Columbia Records factory sleeve. The labels and vinyl (styrene) are very nearly Mint, and the audio itself is powerful and pristine! (This scan is a representative image from our archives; it doesn't show the drillhole, which appears on the left side of the label)
