Synonyms may help people to figure out meanings by known words. If a word's meaning is unknown, atleast one of the synonyms must be a known word. So, the meaning of the unknown word can be explained by the meaning of the known synonym, as a synonym is an alternative word with the same meaning.
I might be wrong but this might be it
1. fundamental elements
2. music notation
3. these elements
4. music scores
5. melody, harmony, and rhythm
6. melody
7. the element that holds the music together
8. into music notation altogether
9. it's harmony and rhythm that are combined into melody that create the song without lyrics.
I tried my very best to figure it out. Sorry if it is wrong.