Did the Beatles make a recording to stir up your pup?
"A Day in the Life" is the last song on The Beatles' Sgt Pepper's Lonely Hearts Club Band album. The album was released on June 1st 1967 but while recording Paul McCartney was informed by his engineers that vinyl could record frequencies higher and lower than a human could hear.

After discussing the epic range of vinyl with John Lennon he suggested they insert a high-pitched whistle for dogs, 18 kilocycles. If you watch your dog while playing this track you are sure to see your dogs perk up.

Some say that "A Day in the Life" is the Beatles' best track. It was ranked 28th greatest song of all time by Rolling Stone magazine.