tailieunhanh - Music Theory FundamentalsSection 1.6

Beats in compound time signatures divide into three division notes, not two. The top number indicates the number of division notes per measure. The bottom number indicates the division rhythmic value (not the beat unit). It takes three division notes (not two) to make one beat. | 18 Lea inMM Theo High-Yield Music Theory Vol. 1 Music Theory Fundamentals Compound time signatures Section Compound and Asymmetric Meter Beats in compound time signatures divide into three division notes not two. The top number indicates the number of division notes per measure. The bottom number indicates the division rhythmic value not the beat unit . It takes three division notes not two to make one beat. 6 6 division notes 8 e is division of beat One beat e e e q. 2 beats Duple Decoding compound time signatures A time signature with 6 9 12 or 15 on top is compound. To get the number of beats divide the top number by three. The beat unit is a dotted rhythmic value one larger than the bottom number sixteen on the bottom means a dotted-eighth beat unit eight on the bottom means a dotted quarter and so on. Compound time signatures can be duple triple quadruple or even quintuple five beats . Tempo and Meter 1 2 3 9 9 division notes Ì6 x is division of beat One beat x x x e. 12 3 4 r v - v - v v v v - 12 12 division notes 8 e is division of beat One beat e e e q. 3 beats TRIPLE 4 beats QUADRUPLE Sometimes tempo can make a normally compound time signature into a simple time signature or a normally simple time signature into a compound one. This is especially common if the top number is six or three. Very fastJ J wrrrrr 1 2 3 4 5 6 Verysiowr r r r r r OR- 6ưữũrggg 6 6 division notes 2 beats 4 q is division of beat One beat q q q J. Compound Duple 6 6 beats 4 q is beat unit Simple Sextuple 1 2 18 Chapter 1 Music Notation 19 Asymmetric time signatures Asymmetric time signatures have a mixture of two and three-part beat divisions. The top number indicates the number of division notes per measure often 5 7 or 11 but varies . The bottom number indicates the division rhythmic value not the beat unit . The beaming indicates beat groupings for individual beats. 5 5 division notes 7 8 e is division of beat 16 2 beats DUPLE Performing asymmetric time signatures 1 2 1