A Dictionary of Music and Musicians/Discord
DISCORD is a combination of notes which produces a certain restless craving in the mind for some further combination upon which it can rest with satisfaction.
Discords comprise such chords as contain notes which are next to each other in alphabetical order, and such as have augmented or diminished intervals, with the exception in the latter case of the chord of the 6th and 3rd on the second note of any key. The changed combination which must follow them in order to relieve the sense of pain they produce is called the resolution. For the various kinds of discords and their resolutions see Harmony.[ C. H. H. P. ]