One of the things that overwhelmed me when I first tried soloing over changes in jazz was how fast the chord changes often pass. How could I change scales that quickly and express anything? An instructor I worked with years ago taught me a way to simplify a series of changes by looking at what key the chords are implying. Here's how you do it.
First, let's look at the A section (the head) of Line For Lyons by Gerry Mulligan: