Area of Study 01: Rhythm and Metre AQA GCSE Music Areas of Study • AoS 01: Rhythm and Metre • AoS 02: Harmony and Tonality • A0S 03: Texture and Melody • AoS 04: Dynamics and Timbre • AoS 05: Structure and Form Rhythm and Metre This is all about beats, timing and sound patterns • Metre – This is a regular pattern of beats in every bar, indicated by a time signature • Rhythm – is the way different lengths of sound are combined to produce patterns in time. Rhythm - Back to Basics = 4 beats Semibreve = 1 beat Crotchet = 2 beats Minim = ½ beat Quaver or 2 Quavers Dotted Notes • Adds half as much again to the length of the note = 1 beat Add a Dot Dotted Crotchet Crotchet = 2 beats Minim = 1 ½ beats Add a Dot = 3 beats Dotted Minim Time Signatures • This shows us how many beats there are in a bar TOP NUMBER – tells you how many beats there are in a bar BOTTOM NUMBER – tells you how long each beat is worth Time Signatures – The bottom number 2 2 3 4 6 8 A 2 at the bottom means each beat is worth 1 minim A 4 at the bottom means each beat is worth 1 crotchet An 8 at the bottom means each beat is worth 1 quaver Time Signatures cont. 4x Beats every bar Main beat of the bar Simple Time • Examples of Simple Time Signatures are; 2 4 3 4 4 4 Compound Time • Compound time signature have 6, 9 or 12 as their top number • 6/8 Time signature has a feeling of 2 & 3 • Music in these time signatures feel as though they have a main beat, which divide into 3. Main Beat Main Beat Main Beat Main Beat Main Beat Regular and Irregular • Regular Time Signatures are when the beats in a bar can be grouped e.g. – 2/4, 6/8 (2 beats per bar) DUPLE – 3/4, 9/8 (3 beats per bar) TRIPLE – 4/4, 12/8 (4 beats per bar) QUADRUPLE • Irregular Time Signatures are when the beats can not be grouped as above – e.g 5/4 – 5 beats in a bar would have to be grouped as a 2 and 3 Track 02 Listen to the Example: The Time Signature is 5/4. It sounds like there is one group of 3 then one group of 2 (irregular) Listening Tests 1. 2. 3. (i) (iii) What is the time signature? (Q1) The piece is in 4/4 time how many bars introduction is there? (Q16) Which rhythm matches the bass drum rhythm? (Q27) (ii) (iv) Syncopation • A ‘stress’ on a normaly un-stressed note – gives an off beat feel. • Often in jazz and pop music. Listen to the Example: The guitar riff is syncopated Syncopation 2 • Syncopation can be added purely through the use of accents on the weaker beat of the bar. Star Wars Hemiola • A Hemiola rhythm has a ‘three against two’ feel. • For example, in this 3/4 rhythm there is a hemiola in the last two bars, giving the impression of three minim beats in the two bars of 3/4 time. Hemiola Listening Tests - 2 1. What is the time signature? (Q2) 2. What is the time signature? (Q17) 3. Listen to Stevie Wonders version of Blowin’ in the wind’ and comment on rhythm & Metre. (Q24) Augmentation • This is where a melody or series of notes is repeated using notes of a longer duration. • For example, a melody with the rhythm of: Original Notes are doubled in length Augmentation Diminution • This is the opposite to Augmentation. • The rhythm of the melody is half the length Original Diminution Polyrhythms • When two or more rhythms are played at the same time. • The rhythms may have accents in different places, but still feel as though they fit together. • Lots of African music is polyrhythmic • Look at the example on the next slide. Bi-Rhythms • Time signatures can be split up into different patterns of beats. • E.g. 3/4 can be divided into 3 groups of two quavers or 2 groups of three quavers 01 02 Listening Tests - 3 1. What is the time signature? (Q13) 12/8 9/8 4/4 2/4 2. Name the rhythmic device heard in the melody (Q28) 3. On which beats of the bar does the rhythm guitar play? (Q29) Tempo • Tempo simply refers to the speed of the music • It can measured in 'beats per minute’ (bpm) • E.g. – Tempo: = 120 120 crotchet beats every minute • The speed can also be indicated by an Italian word Tempo – Italian words • • • • • • • Presto = Very fast Vivace = Fast and lively Allegro = Fast, quickly and bright Moderato = Moderately Andante = Walking pace Adagio = Slow Largo = Very Slow Rubato • If this is written in the music, the performer is able to make changes to the tempo. • In response to the way the music makes them feel, the performer may want to slow down or speed up. • It indicates there is no strict tempo Listening Tests - 4 1. What is the time signature? (Q11) 12/8 2. 4/4 2/4 What is the note value of the tambourines rhythm?(Q29) Crotchet 3. 9/8 minim quaver semiquaver Which tempo marking best suits this melody? (Q9) Allegro Poco Adagio Rhubato Vivace