Dotted note note is used less frequently than the dotted note. Typically, as in the example to the right, 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 18th century, double dots were not used. Until then, in some circumstances, single dots could mean double dots. 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. A triple-dotted note is a note with
Musical note for this note is 440 Hz, although this varies in actual practice (see History of pitch standards). The note-naming convention specifies a letter, any accidentals, and an octave number. Each note is an integer number of half-steps away from concert A (A). Let this distance be denoted "n". If the note is above A, then "n" is positive; if it is below A, then "n" is negative. The frequency of the note ("f") (assuming equal temperament) is then: For example, one can find the frequency of C, the first C above A. There are 3 half-steps between A and C