![]() In music, noting a tone, note, instrument, organ-stop, etc., whose pitch is an octave above the ordinary pitch or any pitch taken for reference: as, the piccolo is an octave flute.Īt the touch of a button, the tiny Octave Multipod 5 in 1 morphs into a video recorder, digital camera, 128MB storage drive, voice recorder, or webcam. In fencing, the eighth guard: point low, hand moving to the right. In pianoforte- and harpsichordmaking, to reinforce the tone of a digital by adding a string tuned an octave above the usual tone of the digital. See sonnet.Ī small cask of wine containing the eighth part of a pipe.Ĭonsisting of eight specifically, consisting of eight lines. The first two quatrains or eight lines in a sonnet. Specifically, in versification: A stanza of eight lines especially, the ottava rima (which see). Also called octave-flute, octavestop.Īny interval resembling the musical octave in having the vibration-ratio of 1:2. In organ-building, a stop whose pipes give tones an octave above the normal pitch of the digitals used specifically, such a stop of the diapason variety. The subdivision of the octave portions themselves has also varied greatly in different systems of music. Ancient Greek music seems to have first used the tetrachord as such a unit while medieval music employed the hexachord in the same way. ![]() #Octave definition series#See the accompanying table: The acceptance of the octave as the best unit for thus dividing the series of recognized tones into sections of equal length and value has not been uniform. The octave beginning on the next C below is called the tenor or small octave that beginning on the second C below is called the bass or great octave that beginning on the third C below is called the contrabass octave while that beginning on middle C itself is called the alto, once-marked, or once-accented octave that beginning on the next C above is called the treble, twice-marked, or twice-accented octave, etc. The tone usually assumed as a starting-point is middle C (written on the first leger line below in the treble clef, and on the first above in the bass clef). ![]() In a standard system of tones selected for artistic use, a division or section or group of tones an octave long, the limits of which are fixed by reference to a given or assumed standard tone whose exact pitch may be defined. See consecutive intervals, under consecutive. In harmony the parallel motion of two voice-parts in perfect octaves is forbidden, except where the mere reinforcement of one voice by another is desired: such octaves are called consecutive octaves. Indeed, its completeness is often regarded as belonging to a different category from that of the other perfect consonances, except the unison, since it amounts rather to a repetition or reinforcement of the original tone at a higher or lower pitch than to a combination of a new or different tone with it: hence the term replicate. The perfect octave is the most complete consonance after the unison. Such an octave is called perfect or major an octave one halfstep shorter is called diminished or minor an octave one half-step longer is called augmented. The typical interval of an octave is that between any tone and its next replicate, which is acoustically represented by the ratio 1:2 - that is, in number of vibrations - and is equal to six diatonic whole steps or to twelve semitones. In a scale, the eighth tone from the bottom, or, more exactly, the tone with which the repetition of the scale begins the upper key-note or tonic the eighth: solmizated do, like the lower key-note. The harmonic combination of two tones at the interval thus described. ![]() The interval between any tone and a tone on the eighth degree above or below it. In music: A tone on the eighth diatonic degree above or below a given tone the next higher or lower replicate of a given tone. John the Evangelist's day (December 27th) is within the octave of Christmas. ![]() The prolongation of a festival till the eighth day inclusive a period consisting of a feastday and the seven days following: as, St. The octave necessarily falls on the same day of the week as the feast from which it is counted. The eighth day from a festival, the feast-day itself being counted as the first: as, Low Sunday is the octave of Easter. ![]()
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