Sonata Allegro Form using Eine kleine nachtmusik

1. Sonata Allegro Form
Developed in instrumental
music of Classical Era.

2. Was used in first movements of:
 Symphony
 Concerto
 Sonata
 Quartet

3. Structure:
 Exposition
 Development
 Recapitulation

4. Exposition:
 Slow introduction (optional)
 First theme (or theme group) and its expansion
in tonic
 Bridge – modulates to a contrasting key
 Second theme (or theme group) and its
expansion in contrasting key
 Closing theme, cadence in contrasting key
 Exposition repeated

5. First theme or theme group
establishes a home key (tonic).
W. A. Mozart, “Eine Kleine Nachtmusik”,
K 525, First Movement: Allegro

6. Theme 1

7. Theme 2

8. Theme 3

9. Bridge – transition between first
and second groups.
Modulates to a contrasting key

10. Second theme or group of themes in
contrast key.
Theme 4.

11. Theme 5.

12. Theme 6 (closing theme).

13. Development.
 Builds up tension against the return to
tonic by:
Frequent modulation to foreign keys, and
Fragmentation and manipulation of themes
and motives.
 Transition back to tonic.

15. Recapitulation
 First theme (or theme group) and its
expansion in tonic
 Bridge (rarely modulates)
 Second theme (or theme group) and its
expansion transposed to tonic
 Closing theme, cadence in tonic
 Coda; cadence in tonic

16. Exposition and Recapitulation
 Slow introduction (optional)
 First theme (or theme group)
and its expansion in tonic
 Bridge – modulates to a
contrasting key
 Second theme (or theme
group) and its expansion in
contrasting key
 Closing theme, cadence in
contrasting key
 Exposition repeated
 First theme (or theme group)
and its expansion in tonic
 Bridge - rarely modulates
 Second theme (or theme
group) and its expansion
transposed to tonic
 Closing theme, cadence in
tonic
 Coda; cadence in tonic.