It is a tape of songs and sound variations that are fun and playful. The songs of Marvelous Mouth Music were built upon the following foundational guidelines from pre-speech development. Children learn concepts and speech patterns most easily when they are combined with music. This is the basis for the early acquisition of commercial jingles, or the popularity of alphabet songs. Movement and speech are closely linked.
Infants initially vocalize primarily when moving.
Suprasegmentals are the foundation for intelligible speech. These are the aspects of speech that are most closely related to music. Suprasegmentals include voice pitch, intonation, rhythm and stress patterns, loudness, and duration of sound. They come in developmentally in the second half of the first year, before the child has developed single words. When words are added to sound, these variations of the voice are already in place to define syllables, phrases, words, sentence breaks and sentence types.