Watchcat Rusty was typically a talkative cat. The only time I remember him singing, however, was when I practiced the double bass. During the '80s, Rusty would sit on the table behind me as I played.and fill in extended rests in the music with his sung meows. His singing didn't always fit the rhythm of the piece I was playing, but I chalked that up to his desire to improvise. If improvisation isn't a cat-like quality, what is?