
Jazz
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jazz glossary
Alteration : The raising or lowering of a tone by a half-step, from its diatonic value in a chord. In Jazz usage, the fifth and ninth may be raised (augmented) or lowered (diminished); the fourth (or eleventh) may be augmented; the thirteenth may be diminished. The expression 'diminished seventh' is used solely as the name of a chord. Of course, in general music theory, any interval may be augmented or diminished. Altered scale : The dominant 7th scale with a lowered 9th, raised 9th, raised 11th, no fifth, and lowered 13th, along with the usual root, 3rd and 7th. So-called because every possible alteration has been made.Copyright 1992-2000 Outside Shore Music This is the online version of my text, A Jazz Improvisation Primer . Here you can find information on almost every topic relating to jazz improvisation, from jazz history to music theory to practical advice on playing in a group. A German translation, by Edgar Lins, is online, at http://msjipde.uteedgar-lins.de . There is also a Hungarian translation at http://w3.enternet.hu/mbha/primer_hu/primer.htm , provided by Makrai Balázs.

