Trombone Playing Farmer Brings Home the Beef [VIDEO]

What's the best way to attract cattle?  According to this video, a cowboy playing 'Royals' on his trombone. 

This farmer may need a few extra trombone lessons but the cows don't seem to mind.  Just think how much quicker the herd would've come if he had played some George Strait!

Have you heard of or seen any unique ways to call livestock or other animals?