Rhythm is a musical sound gesture(s) usually percieved in horizontal motion of linear time and dictated along the stave within bars which consists of beat rhythm and harmonic rhythm.
Beat rhythm is developed from regular beats in a bar and these regular beats can be subdivided into different note value(s) and tied or grouped into irregular note values to create variety of rhythmic sound pattern (or simply known as rhythmic beat pattern).
In Western Art (Classical) music, rhythmic beat pattern is usually repetitive and in symmetrical form. Most of the rhyhtmic patterns are influenced by the rhythmic movements of dances such as Waltz. This is because, traditionally, music has been used to accompany dance movements.
With rhythmic beat pattern, specific musical style or genre can be established and identified. For example, rhythmic beat pattern of a Gigue.
2.c.2) Rhythm: Regular and Irregular Grouping
Regular rhythmic beat grouping has clear down beat and regular beat counting which can be represented with the grouping of note value of
crotchet beat grouping
minim beat grouping
semibreve beat grouping
dotted crotchet beat grouping in compound time signature only
Irregular rhythmic beat grouping contrast with regular rhythmic beat grouping, whereby the rhythmic beats are unable to fit or clearly represent the regular crotchet, minim, semibreve and dotted crotchet (compound time signature only) beat grouping.
2.c.3) Rhythm: Syncopation
Syncopation is a type of beat rhythm which highlighting (accenting) the weak beat(s) or off-beat(s) with stressed sound by using rest(s), tie(s) and accent(s).
Syncopation will produce a temporary shift between regular and irregular beat counting (stable-unstable motion), which create extra ‘drive’ to the music.
Rhythmic Syncopation with Rest
Rhythmic Syncopation with Tie
Tie is a musical notation symbol inform of arch shape which has similar shape with a slur (musical phrasing marking) but tied between two note heads.
Tie is a rhythmic device which is use to create variety of beat rhythms by joining two or more note values into single sustained sound at a fixed pitch.
Tie enable the joined note values to across the metric division (bar line) between two or more bars. This will produce missing musical beat count (off-beats) or known as syncopation (rhythmic point of view) and suspension (harmony point of view).
Tie also enable the joined note values to across the regular beats grouping, producing irregular beats grouping while maintaining clear and visible beat counting.
Rhythmic Syncopation with Accent
Accent is a musical notation symbol in music playing techniques which requires the player to stress (play louder, round and heavier) on the specific note marked with > (accent) and more audible among other notes in a bar within the dynamic range.
2.c.4) Rhythm: Rhythmic Interlocking with Tuplet(s)