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After tonic, the names of the remaining scale degrees (of a diatonic scale) in order are as follows: Supertonic - 2nd scale degree, Mediant - 3rd Scale degree, Subdominant - 4th Scale degree, Dominant - 5th Scale degree, Submediant - 6th Scale degree, Leading Tone - 7th Scale degree, Subtonic - Also 7th scale degree, but applying to the lowered 7th found in the natural Minor Scale . In western European tonal Music of the 18th and 19th Centuries , the tonic center was the most important of all the different tone centers which a Composer used in a piece of music, with most pieces beginning and ending on the tonic, usually travelling to the Dominant (the fifth above the tonic, or the fourth note up from the tonic) in between. There can be Major Scale s and Minor Scale s. The tonic remains the same in these two different " Modes ," ''for a given Key '', wheareas Scale Degrees such as the third degree and the sixth degree are altered in the minor scale. Howevever, this can be seen another way. Each minor scale uses exactly the same set of notes ( Key Signature ) as some major scale and vice-versa. The only difference is which of these notes is the tonic. For example, C major and A minor have no sharps or flats. Consequently, the tonic plays an important part in determining why music composed in a minor scale sounds different from music composed in a major scale. A tonic may be considered a tonal center, while a '''pitch center''' functions referentially or contextually in an atonal context, often acting as axis or line of symmetry in an Interval Cycle (Samson 1977). '''''Pitch centricity''''' was coined by Arthur Berger in his "Problems of Pitch Organization in Stravinsky". The tonic Diatonic Function includes four separate activities or roles as the principal goal tone, initiating event, generator of other tones, and the stable center neutralizing the tension between dominant and subdominant. SEE ALSO SOURCE
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