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Counts the beat number on the tactus, & on the half beat, and n-e-&-a for four sixteenth notes, n-&-a for a triplet or three eighth notes in compound meter, where n is the beat number. [ 7 ] Eastman system
Dotted notes and their equivalent durations. The curved lines, called ties, add the note values together. In Western musical notation, a dotted note is a note with a small dot written after it. [a] In modern practice, the first dot increases the duration of the basic note by half (the original note with an extra beam) of its original value.
Dotted note Placing a dot to the right of a notehead lengthens the note's duration by one-half. Additional dots lengthen the previous dot instead of the original note, thus a note with one dot is one and one half its original value, a note with two dots is one and three quarters—use of more than two dots is rare.
This dot adds the next briefer note value, making it one and a half times its original duration. A number of dots ( n ) lengthen the note value by 2 n − 1 / 2 n its value, so two dots add two lower note values, making a total of one and three quarters times its original duration.
Most time signatures consist of two numerals, one stacked above the other: The lower numeral indicates the note value that the signature is counting. This number is always a power of 2 (unless the time signature is irrational), usually 2, 4 or 8, but less often 16 is also used, usually in Baroque music. 2 corresponds to the half note (minim), 4 to the quarter note (crotchet), 8 to the eighth ...
For example, quarter notes (crotchets) are expressed by the syllable ta while eighth note (quaver) pairs are expressed using the syllables ti-ti. Larger note values are expressed by extending ta to become ta-a or "ta-o" (half note (minim)), ta-a-a or "ta-o-o" (dotted half note/minim), and ta-a-a-a or "ta-o-o-o" (whole note (semibreve)).
Dashes after a note lengthen it, each dash by the length of a quarter note. A dot after the plain or underlined note works increases its length by half, and two dots by three quarters. The underline, along with its joining, are analogous to the number of flags and beaming in standard notation. So are dotted notes.
The most common tuplet [9] is the triplet (German Triole, French triolet, Italian terzina or tripletta, Spanish tresillo).Whereas normally two quarter notes (crotchets) are the same duration as a half note (minim), three triplet quarter notes have that same duration, so the duration of a triplet quarter note is 2 ⁄ 3 the duration of a standard quarter note.