When I first heard this on the radio I was hooked. The time signature was changing from 4/4 to some odd # (7/4, 5/4 etc) but it didn't *feel* odd. That was part of what made RUSH unique. They were brilliant together, so much so that even odd # time signatures felt natural.

https://youtu.be/ZiRuj2_czzw?si=EcYKgzvjFGq62cci