Particle displacement

In Western musical notation, a dotted note is a note with a small dot written after it. In modern practice the dot increases the duration of the basic note by half of its original value. If the basic note lasts 2 beats, the corresponding dotted note lasts 3 beats. A dotted note is equivalent to writing the basic note tied to a note of half the value, or with more than one dots, tied to notes of progressively halved value. Any number of dots may be added to a note; n dots serve to lengthen the note by $1-{\tfrac {1}{2^{n}}}$ of its original duration.Potter or Ceramic Artist Truman Bedell from Rexton, has interests which include ceramics, best property developers in singapore developers in singapore and scrabble. Was especially enthused after visiting Alejandro de Humboldt National Park.

Although notes with more than three dots do not occur often, one can determine the length of any given note a with n dots: $a_{n}=a\left(1+{\tfrac {1}{2}}+{\tfrac {1}{4}}+\cdots +{\tfrac {1}{2^{n}}}\right)=2a-{\frac {a}{2^{n}}}$.

File:Dotted notes.svg

Notation

Example 1. Dotted notes and their equivalent durations. The curved lines, called ties, add the note values together.

If the note to be dotted is on a space, the dot also goes on the space, while if the note is on a line, the dot goes on the space above (this also goes for notes on ledger lines). However, if a dotted note on a line is part of a chord where a higher note is also on a line, the dot for the lower note is placed in the space below:  

The dots on dotted notes, which are located to the right of the note, are not to be confused with the dots which indicate staccato articulation, which are located above or below the note as shown in the 3rd and 4th notes of Example 2.

Theoretically, any note value can be dotted, as can rests of any value. If the rest is in its normal position, dots are always placed in third staff space from the bottom.

The use of a dot for augmentation of a note dates back at least to the 10th century, although the exact amount of augmentation is disputed; see Neume.

Dots can be used across barlines, such as in H. C. Robbins Landon's edition of Joseph Haydn's Symphony No. 70 in D major, but most writers today regard this usage as obsolete and recommend using a tie across the barline instead.

More than one dot may be added; each dot adds half of the duration added by the previous dot, as shown in example 1.

Double dotting

A double-dotted note is a note with two small dots written after it. Its duration is 1¾ times (1x + ½x + ¼x = 2x − ¼x) its basic note value.

The double-dotted note is used less frequently than the dotted note. Typically, as in the example below, it is followed by a note whose duration is one-quarter the length of the basic note value, completing the next higher note value.

Before the mid 18^th century, double dots were not used. Until then, in some circumstances, single dots could mean double dots.

Example 2. The first two notes show a double-dotted eighth note followed by a thirty-second note, that are connected with a beam.

Example 2 is a fragment of the second movement of Joseph Haydn's string quartet, Op. 74, No. 2, a theme and variations. The first note is double-dotted. Haydn's theme was adapted for piano by an unknown composer; the adapted version can be heard My name: Lindsey Gavin
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In a French overture (and sometimes other Baroque music), notes written as dotted notes are often interpreted to mean double-dotted notes, and the following note is commensurately shortened; see Historically informed performance.

Triple dotting

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Example 3

A triple-dotted note is a note with three dots written after it; its duration is 1⅞ times (1 + ½ + ¼ + ⅛ = 2 − ⅛) its basic note value. Use of a triple-dotted note value is not common in the Baroque and Classical periods, but quite common in the music of Richard Wagner and Anton Bruckner, especially in their brass parts. See example 3.

An example of the use of double- and triple-dotted notes is the Prelude in G major for piano, Op. 28, No. 3, by Frédéric Chopin. The piece, in common time (4/4), contains running semiquavers in the left hand. Several times during the piece Chopin asks for the right hand to play a triple-dotted minim (lasting 15 semiquavers) simultaneously with the first left-hand semiquaver, then one semiquaver simultaneously with the 16th left-hand semiquaver.

More than three dots are highly uncommon but theoretically possible; only quadruple dots have been attested.

See also

"Hard swing" (3:1): dotted eighth-sixteenth.

• Swung note
• Notes inégales
• Tuplet
• 1/2 + 1/4 + 1/8 + 1/16 + · · ·

References

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