Harding paid singers to sing his published songs in shops and beer halls to get them known and attract customers .
Frank Harding was a Tin Pan Alley music publisher , who was credited with creating the method of selling music called plugging .
music publisher paid singers to sing Frank Harding 's published songs in shops and beer halls to get them known and attract customers .
Frank Harding was a Tin Pan Alley music publisher , who was credited with creating the method of selling music called plugging .