ANSWER
Unitary, Binary, and Ternary forms of Music
A unitary concert mixes several types of music. Everything is a part of a whole, according to unitary philosophy. Unitary form, verse-repeating form, chorus form, "AAA song form," or "one-part song form" are all terms for the same thing.
A binary form is a musical form that is divided into two pieces that are generally repeated. Binary is also a dance choreography structure. This is commonly done as A-A-B-B in music.
In music, a ternary form is a three-part form with the third section usually being a literal or modified repeat of the first. The trio portion usually comes after the minute and is in a different key.
Note that binary forms have two significant sections (we learn that B combines with the subsequent A), but ternary forms have three significant portions (we hear B as relatively independent from the following A).
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