Lisa Spector, a Juilliard School graduate and concert pianist, collaborated with Joshua Leeds, a sound researcher in Marin, Calif., to study the impact classical music has on dogs.
Two years of research and clinical demonstrations produced a book, Through a Dog's Ear: Using Sound to Improve the Health & Behavior of Your Canine Companion, written by Leeds and Susan Wagner, a board-certified veterinary neurologist.
Spector is the pianist on a 45-minute CD that Leeds produced to go with the book.
One out of seven dogs has behavioral issues that stem from an overwhelmed nervous system, said Leeds.
"There's too much noise and too much input," he said. "Our dogs are indicators of the stressed environment we live in."
For more than 20 years, Leeds has specialized in psychoacoustics, the study of music and sound on the human nervous system.
Four-and-a-half years ago, Spector approached Leeds after one of his seminars and told him about her dogs falling asleep when she played the piano. She hoped that he would want to work with her on a CD for dogs.
Leeds was apprehensive.
But after speaking with Spector, he did some research and found there was nothing documented about the effects of music on dogs, except for one study conducted by Deborah Wells, a psychologist and animal behaviorist.
She played various kinds of music in dog shelters in San Francisco and learned that classical music -- not rock music or jazz -- had a calming effect on dogs, Leeds said.
His only caveat before teaming with Spector was to make sure the music went through clinical research before it was released.
Four different CDs were cut and tested on 150 dogs in homes and shelters. The one that had an overwhelming response from dogs was the simplified classical music performed on piano.
Seventy percent of dogs in kennels showed a reduction in stress, while 85 percent in households were calmed.