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Classical Period Forms |
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General types of musical material in Classical Period forms Introductory- prepares or leads toward something (often unstable or focused on dominant preparation) Expository- presents themes, usually in clear-cut phrases Transitional- moves from one key and/or mood to another, often through sequence and melodic fragments Developmental- submits themes to various treatments, including frequent modulation, fragmentation, fugue, combining one theme with another, etc. Cadential or Closing- all phrases lead to cadences, often repetitively The Multi-movement Cycle (Used for multi-movement instrumental works in the Classical Period)
(Note: Third movement, Minuet and Trio, usually omitted in concertos. In lighter pieces such as serenades, there may be additional movements, such as extra minuets) Sonata-allegro Form Sonata -allegro form developed from rounded binary during the early Classical Period. In the A section, the modulation to V occurred earlier with new thematic material introduced which eventually became the second theme group. The B section evolved into the development, and the return of A became the recapitulation. Slow Introduction (optional)- usually has no thematic relationship to movement proper Exposition
Development (various keys) Recapitulation
Coda (optional)
Rondo form ABACA or ABACBDA
Compound ternary form ABA, in which each of the three sections is in binary (ab) form Theme and Variations Begins with self-contained song (original or by someone else), followed by a series of self-contained variations, each of which presents the theme with changes (extra notes or embellishments, changed from major to minor or vice versa, different articulation style, mood, etc).
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