The song score of lyrics and music was written by the Sherman Brothers , who had previously written music for family films like Mary Poppins ( 1964 ) , The Jungle Book ( 1967 ) , and Chitty Chitty Bang Bang ( 1968 ) .
The song score of music and lyrics was written by the Sherman Brothers , who had also been done the music in other family movies like The Jungle Book ( 1967 ) .