8
B. Polyrhythm: simultaneous conicting rhythmic
patterns
1. drum ensembles from Ghana, Uganda
2. gamelan music of Indonesia
C. Additive rhythms: grouping of irregular numbers of
beats
1. beats add up to larger pattern, e.g. 2 + 3 + 3 (= 8)
2. typical of Indian classical music
D. Nonmetric: no strong sense of beat or meter
1. chant of the early Christian church
OVERVIEW
Rhythm and meter define how music moves forward through
time. This chapter introduces the basics of beat, rhythm,
and meter, and elaborates some common ways to diversify
rhythm and meter through more complex patterns of
organ ization.
LEARNING OBJECTIVES
1. To understand the concept of rhythm as the movement
of music forward through time
2. To understand how meter, marked off in mea sures, orga–
nizes the beats (pulse) in music
3. To understand how simple (duple, triple, qua dru ple) and
compound (sextuple) meters are constructed
4. To gain an understanding of the rhythmic complexities
created by offbeats, syncopation, polyrhythm, and non-
metric music
OUTLINE
I. Rhythm: Movement of Music in Time
A. Propels music forward
1. most fundamental ele ment of music
2. notes have length, duration
B. Beat: basic unit of rhythm
1. regular pulse divides time into equal segments
2. strong beats: accented, provide rhythmic pulse
C. Meter: organizes groups of beats
1. meter organizes the ow of rhythm
2. mea sures (or bars): contain fixed number of beats
3. mea sure (bar) lines: vertical lines designate
mea sures
II. Metrical Patterns
A. Regularly recurring patterns of beats; depend on
regular accents
1. downbeat: first accented beat of each pattern
2. simple meters: beats divided into two
a. duple: alternates strong downbeat with a weak
beat (ONE two)
b. triple: three beats per mea sure (ONE two three)
i. associated with dances; e.g., waltz, minuet
c. qua dru ple: four beats per mea sure
(strongest-weak– strong- weak)
3. compound meters: beats divided into three
a. sextuple (compound duple): six beats per
mea sure
i. two main beats (ONE– and- a, TWO– and- a)
4. upbeat: music begins with weak beat, anticipates
downbeat
III. Rhythmic Complexities
A. Syncopation: accents fall on offbeats
1. offbeats: weak beats, in between stronger beats
2. African American dance rhythms, jazz
CHAPTERfi2 Rhythm and Meter: Musical Time