Dave FrishbergDavid L. Frishberg (born March 23, 1933) is an American jazz pianist, vocalist, composer, and lyricist born in Saint Paul, Minnesota. His songs have been performed by Blossom Dearie, Rosemary Clooney, Shirley Horn, Anita O'Day, Michael Feinstein, Irene Kral, Diana Krall, Stacey Kent, John Pizzarelli and Mel Tormé.
Frishberg wrote the music and lyrics for "I'm Just a Bill", the song about the forlorn legislative writ in the ABC ''Schoolhouse Rock!'' series, which was later transformed into the popular revue ''Schoolhouse Rock Live''. For ''Schoolhouse Rock!'' he also wrote and performed "Walkin' on Wall Street", a song that describes how the stock market works, and "$7.50 Once a Week", a song about saving money and balancing a budget. Provided by Wikipedia