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Dissonance, resolution, and suspense can be used to create musical interest. Where a melody or chordal pattern is expected to resolve to a certain note or chord, a different but similarly suitable note can be resolved to instead, creating an interesting and unexpected sound. For example, the deceptive cadence.
Resolution has a strong basis in tonal music, since atonal music generally contains a more constant level of dissonance and lacks a tonal center to which to resolve. The concept of "resolution", and the degree to which resolution is "expected", is contextual as to culture and historical period. In a classical piece of the Baroque period, for example, an added sixth chord (made up of the notes C, E, G and A, for example) has a very strong need to resolve, while in a more modern work, that need is less strong - in the context of a pop or jazz piece, such a chord could comfortably end a piece and have no particular need to resolve.
An example of a single dissonant note which requires resolution would be, for instance, an F during a C major chord, CEG, which creates a dissonance with both E and G and may resolve to either, though more usually to E (the closer pitch), see Suspended chord. In reference to chords and progressions for example, a phrase ending with the following cadence IV-V, a half cadence, does not have a high degree of resolution. However, if this cadence were changed to (IV-)V-I, an authentic cadence, it would resolve much more strongly by ending on the tonic I chord.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Resolution". Allthough most Wikipedia articles provide accurate information accuracy can not be guaranteed.
5 Little Preludes (BWV939-943)
Symphony no. 1 "Titan"
Budapest Festival Orchestra