![]() ![]() InterchangeableĪn interchangeable time signature indicates a set of time signatures at the start of the piece that can be used during the piece, such as 3/4–2/4. For example, for a phrase with twelve eighth notes that needs to be emphasized 3+3+2+2+2, an alternating time signature of 6/8+3/4 might allow the two meters to be read more clearly. ![]() AlternatingĪn alternating time signature indicates a regular pattern that switches every bar between two or more time signatures, in the indicated order. For example, instead of 7/8, you could show an additive time signature of 2+3+2/8. You can show beat group numerators for any type of time signature. AdditiveĪdditive time signatures show how bars are subdivided into beat groups. For example, 5/4 usually contains a half note beat and a dotted half note beat. Because the numerator is odd, these time signatures must be divided into unequal beat groups. Irregular time signatures, such as 5/4 or 7/8, cannot be subdivided into equal beat groups. In compound time signatures, each beat is divided by three into equal groups of dotted notes, such as 6/8, which contains two dotted quarter note beats, or 9/4, which contains three dotted half note beats. Simple time signatures can be simple duple, such as 2/4, simple triple, such as 3/4, or simple quadruple, such as 4/4. In simple time signatures, each beat is divided by two into equal groups of notes. These definitions, such as which meters are considered simple and compound, might be different in other languages. Dorico uses the definitions for meters commonly used in American English. ![]()
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