Form or structure
Overall shape of music
E.g. Binary tertiary rondo
Binary
Two sections repeated. AB
Introduction
Opening passage which prepares you for the first main idea
Phrase
Short passage of music
Rondo
ABACA
A recurs and B and C are episodes
Sonata form
Large scale form from classical period
Tertiary form
Three section
ABA
Strophic
Same music for each stanza of the poem