I'm at Appell's home in Cherry Hill, where the atmosphere is anything but sleepy. Gold records and framed copies of Cashbox Top-40 charts hang on the walls, and everywhere are mementos of a career that began with 78 r.p.m. discs and continues in the digital-download era.
"Want to hear something new?" Appell asks, cuing up a CD in his basement studio. A beat or two into a breezy tune called "Jazzioso" and he's got his groove on, bopping his head, tapping his feet.
"My first instrument was my brother's ukulele," says the songwriter, arranger, and performer, who grew up in Philadelphia's Fishtown section. There was music in the family (his father played violin), and Appell taught himself notation by "reading a lot of books."
He played trombone in bands while serving in the U.S. Navy in World War II. While home on leave he'd try to freelance his arrangements to musicians at the Earle Theater in Center City.
After the war, Appell worked in the house bands at Ciro's and other Philly nightclubs. He did live TV with Ernie Kovacs and got on the charts with his Apple Jacks band, performing novelty numbers such as "Mexican Hat Rock."
Cameo-Parkway, then on South Broad Street, was akin to New York's famous Brill Building. Except that Philly had a finger-poppin', street-corner sound all its own.
"He was like the unsung hero at Cameo-Parkway," recalls Joe Tarsia, who would later gain fame as the founder of Sigma Sound Studios in Center City.
"I was fixing TVs at night, and he introduced me into the business," says Tarsia, 77, of Haddonfield. "I have the greatest admiration for him."