Transcript dotted eighth notes - Introduction to Music Theory

INTRODUCTION TO
MUSIC THEORY
TUESDAY, SEPTEMBER 27, 2011
TODAY:
 Music Sharing: Hunter
 ET9
 Review: Perfect, major intervals, minor, augmented, & diminished
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intervals
Aural Skills: Interval Identification (songs & tricks to help you!)
Review: Solfège & Transposition
RQ9
Introduce: Sixteenth notes & rests
Introduce: Dotted Eighth notes
Introduce: Common Time & Cut Time (Alla Breve)
Homework: Complete L39 &L40
Tomorrow: Compound Meter, 3/8, 6/8, triplets, and pick–ups!
INTERVAL CARNIVAL:
 Perfect: Unison (unis.), 4th, 5th, octave (8va)
 Major: 2nd, 3rd, 6th, 7th
 Minor: 2nd, 3rd, 6th, 7th
 Augmented:
unis., 2nd, 3rd, 4th, 5th, 6th, 7th, 8va
 Diminished: 2nd, 3rd, 4th, 5th, 6th, 7th, 8va
DIANTONIC VS. CHROMATIC INTERVALS:
 When the tonic and the upper note of an interval
are from the same major scale, it is called a
diatonic interval.
 Perfect and major intervals are always diatonic
intervals in all major keys.
 When the tonic and the upper note of an interval
are NOT from the same major scale, it is called a
chromatic interval.
 Minor, augmented, and diminished intervals are
always chromatic intervals in all major keys.
SOLFÈGE & TRANSPOSITION:
 Solfège is a system of note reading that assigns
a different syllable to each note.
 1 = Do
 2 = Re
 3 = Mi
 4 = Fa
 5 = Sol
 6 = La
 7 = Ti
 8 = Do
SOLFÈGE & TRANSPOSITION:
 MOVEABLE DO = the syllables apply to the
same scale degrees, regardless of what key you
are in.
 When a melody is rewritten into another key
with the exact same sequence of notes and
intervals, it is called TRANSPOSITION. This
raises or lowers the notes to make a melody
easier to sing or play, or so it can be played by
an instrument in a different key.
 The easiest way to transpose is by interval.
SIXTEENTH NOTES & RESTS:
 Add a flag to the stem of a quarter note and it becomes
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an eighth note.
Add a flag to the stem of an eighth note and it becomes a
sixteenth note.
In 4/4 time, two sixteenth notes = 1 eighth note.
In 4/4 time, four sixteenth notes = 1 quarter note.
In 2/4, 3/4, & 4/4 time, a sixteenth note is worth ¼ of a
beat; one beat is divided into four equal parts (“1 e & a”,
etc.)
Sixteenth notes can be drawn with flags attached to the
stem, or with 2 beams for two or more sixteenth notes.
DOTTED EIGHTH NOTES:
 Remember: A dot after a note increases its length by
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one half of its original value.
An eighth note = two sixteenth notes.
A dotted eighth note = three sixteenth notes.
A dotted eighth note is almost always followed by a
sixteenth note.
Hierarchy:
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Dotted half note (3) --- usually followed by a quarter note/rest
Dotted quarter note (1½) --- usually followed by an eighth
note
Dotted eighth note (¾) --- usually followed by a sixteenth note
CUT TIME (ALLA BREVE)
 In music, alla breve (also sometimes called cut time
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or cut common time) refers to a musical meter
notated by the time signature symbol (a broken circle
with a line through it), which is the equivalent of 2/2.
Alla breve is a “simple-duple meter with a half-note
pulse”.
Common time is the equivalent of 4/4.
In contemporary usage alla breve suggests a fairly
quick tempo. Thus, it is used frequently for military
marches.
From about 1600 to 1900, its usage varied with regard
to tempo varied, so it cannot always be taken to mean a
quick tempo.