note A sign used in musical notation to represent the relative duration and pitch of a sound pitch the perceived frequency of sound including "definite pitch" and "indefinite pitch" dynamics the softness or loudness of a sound or note timbre is the quality of a musical note or sound or tone that distinguishes different types of sound production, such as voices or musical instruments truble clef is a musical symbol used to indicate the pitch of written notes.[ consonance is a harmony, chord, or interval considered stable, as opposed to a dissonance dissonance is the quality of sounds that seems "unstable", and has an aural "need" to "resolve" to a "stable" consonance beat the basic time unit of a piece of music meter is a term that music has inherited from the rhythmic element of poetry where it means the number of lines in a verse, the number of syllables in each line and the arrangement of those syllables as long or short, accented or unaccented accent is an emphasis placed on a particular note, either as a result of its context or specifically indicated by an accent mark syncopation includes a variety of rhythms which are in some way unexpected in that they deviate from the strict succession of regularly spaced strong and weak but also powerful beats in a meter (pulse). tempo is the speed or pace of a given piece chord is any set of notes that is heard as if sounding simultaneously scale a scale is a sequence of musical notes in ascending and descending order that provides material for or is used to conveniently represent part or all of a musical work including melody and/or harmony.[ key is used in many different and sometimes contradictory ways. A common use is to speak of music as being "in" a specific key, such as in the key of C or in the key of F-sharp form the progression of the music music words
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