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Imitation: A
fugal
technique of composition, in which one part introduces a
theme, or
subject which is then
answered by the other parts by
reiterating
the same theme later in the work. This term is usually applied to
fugal passages in choral
music.
Imperfect Cadence:
See half-cadence.
Impressionism:
A musical
movement of the late 19th and early 20th centuries. Inspired by the
French impressionist painters, the movement had its impetus in the
music
of
Debussy and Ravel.
A stylistic period of composition that sought to put to
music only the most
immediate, direct impressions, upon the
composer, of a given
subject.
Impressionism avoided traditional harmony of
thirds,
employing more often quartal
or quintal
tonality.
Impromptu: A
short, improvisational-sounding piece.
Improvisation:
Spontaneous Composition. The performance of
music that is composed on the
spur-of-the moment by the performer, usually as a
solo, or
cadenza.
Also used extensively in jazz.
Incidental Music:
Short musical
segments that accompany, or highlight dramatic moments in, a play,
or other stage work.
Instrument: Any device that produces a
musical sound.
Instrumentation:
The art of composing, orchestrating or arranging
works for an instrumental ensemble.
Interlude: Short
music used to
bridge the acts of a play, or the verses of a
hymn.
Introduction:
The preparatory section,
movement, or
phrase of a
musical work.
Interval: The
distance between two notes, in terms of oscillations per second. The difference
in one half-step is about 35 beats per
second. eg: The
difference in pitch between two
tones.
Introit:
"Entrance". A psalm sung at the start of the Roman Catholic
Mass.
Invention: A
short, contrapuntal piece.
Inversion: As
applied to music
the term may be used in both melody and
harmony.
Melodic inversion: an exchange of ascending and
descending movement, e.g. C up to
F in descending becomes
C down to
G. Harmonic
inversion: the position of the chord is changed from
root position
(root on the lowest
pitch)
to first inversion, with the third, or
second inversion, with the
fifth in the lowest voice.
An example: root position
C-E-G; first inversion e-g-C;
second inversion
G-C-E.
To sum up it is the different forms that a
chord may take by changing the
chord
member that is the bass of the
chord.
Invertible
Counterpoint: counterpoint in which two or
more voices can be interchanged for one another.
Ionian Mode: A
medieval
mode whose
scale pattern is that of playing
C to
C on the white keys of a
Piano. This
scale is identical to a
major scale.
Irish Harp: This
instrument became a national symbol. The Irish harp is carved from a
single piece of wood and originally had 30 to 36 metal strings. Gut or synthetic
strings are used now.
Ironico: (Ita) Ironical.
Italian Sixth Chord:
An augmented sixth chord, which contains a only
three
tones, as opposed to a
German Sixth Chord, or
a French Sixth Chord.
Please
send me any additional words together with the
definition.
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