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THE
BASICS OF SONATA FORM
[courtesy
of the website: http://www.fact-index.com/s/so/sonata_form.html]
Most
first movements of large works in the Classical
(and Romantic) periods of music were in
what is called "sonata" form. "Sonata"
comes from "sonar" or, to "sound," and
sonata form is a NARRATIVE form, in the
sense that it tells the "story of the notes"
-- on Copland's "sheerly musical plane."
As humans we all understand departure
and return, the principle on which it is
based.
NOTE: "Keys" are
referred to below, as well as the "major" and "minor" modes.
If you don't grasp the concept of "keys," that's
o.k. You can still understand the classical sonata
form movement in its simplest version, which consists
of the following sections:
Exposition -
the main themes of the piece are played for the first
time. This section can be further divided into:
- FIRST
THEME (sometimes called FIRST GROUP)- this consists
of one or more themes, all of them in the home
key. So if the piece is in C major, all of the
music in the first group will be in C major.
- BRIDGE
(transitional material) - in this section the composer
modulates from the key of the first subject to
the key of the second.
- SECOND
THEME (also called Subordinate Theme by some) -
one or more themes in a different key to the first
group. If the first group is in a major key, the
second group will usually be in the dominant, that
is to say in a key a perfect fifth higher, so that
if the original key is C major, the key of the
music of the second group will be G major. If the
first group is in a minor key, the second group
will generally be in the relative major, so that
if the original key is C minor, the second group
will be in E flat major. The material in this section
will usually be completely different to that of
the first group, and sometimes will be in marked
contrast to it. For example, the first group material
may be strident and strongly rhythmic, with the
second group more lyrical.
- CLOSING
THEME (or Cadence Theme, or Codetta) - a kind of
finishing off section, which will bring the exposition
section to a close with a perfect cadence in the
same key as the second group. Often the codetta
contains a sequence of themes, each of which arrives
at a perfect cadence. The whole of the exposition
may then be repeated.
Development -
this generally starts in the same key as the exposition
ended, and may move through many different keys during
its course. It will usually consist of one or more
themes from the exposition altered and occasionally
juxtaposed with new material or themes. The development
usually has a high degree of tonal and rhythmic instability
when compared to the other sections. The development
section may be quite short, or it may be extremely
lengthy. At the end, the music will return to the
home key and lead up to the:
Recapitulation -
this is an altered repeat of the exposition, and
consists of:
- FIRST
THEME - usually in exactly the same form as it
appeared in the exposition.
- BRIDGE
- now altered so that it does not change key, but
remains in the piece's home key.
- SECOND
THEME and CLOSING THEME - usually in the same form
as in the exposition, but now in the same key as
the first group. If the first group was in a minor
key, the second group and codetta may be shifted
into the minor for the recapitulation, or they
may be in the parallel major key (e.g., C minor/C
major).
(It
should be noted that the above terminology is not
universally used: some writers speak of the first
and second subjects rather than groups, others
speak of the principal or main theme and the
subordinate theme.)
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