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Structure – how music is organised • Music needs to be organised/planned. • This will make it sound better and easier to write. • The most basic bit of organisation is the beats of a bar. Then the phrasing. • The overall shape is called structure or form e.g verses and chorus in pop song or the movements in a symphony. Repetition & Contrast • Repetition means using a musical idea more than once. • Repeating bits gives music shape.When an audience hear a tune again it works like a landmark i.e. they know where they are. • If you are planning your own piece of music try repeating the best part of the tune. Repetition & Contrast • Although repetition is really important, constant repetition is boring. • Good compositions balance repetition with contrast i.e to do something different from the repeated bits to add variety. • There is contrast in every piece of music. • Verse and chorus structure of a pop song is one obvious way of using contrast. Binary Form • • • • Binary means in two parts . First bit is ‘A’ and the second is ‘B’ i.e. AB Each section can be repeated : AABB Section B contrasts with section A – the two parts should sound different. • The contrast is often made by changing key. Binary Form Ternary Form • Ternary means in three parts – three sections of music. • ABA. • If each section repeats: AABBAA. • When the music goes back to A for the last section it can be exactly the same or varied a bit e.g. with ornaments. • If it is varied, call it A1 instead of A. • E.g. A1 – B – A2 Ternary Form Rondo Form • Rondo can have any number of sections. • Rondo means going round. • It starts with a main idea section A, moves into another new section, goes round again to A….. As many times as you like. • ABACADAEAFA etc • The new section after Section A always contrasts with A. Section A always returns. Rondo Form Theme and Variations • There is a main theme – often simple and easy to remember • After this theme the composer presents the theme again but changes it or disguises it or alters it in different ways • A composer may change the tonality (major-minor), rhythm, tempo, instrumentation etc Theme and Variations theme etc