I’m sitting in my living room with Deep Purple’s Made in Japan playing through the only decent sound system I have in the house. The volume is… excessive, but not like… gig volume.
Child in Time is playing. The verse after the solo has ended and Ian Gillan is starting to scream. Just as he lets out a massive wail my cat strolls into the room and lets out a loud meow…….
And it was exactly the same pitch Ian Gillan was screaming!
For reference…
Inside the Red Head's Head 