Here are entered jazz instrumental works for two or more performers. Songs performed in jazz style by a vocalist or vocal group, with or without accompaniment, are entered under Jazz vocals. --headings for solo instrumental music followed by the parenthetical qualifier "(Jazz)," e.g. Piano music (Jazz); also headings that include the term "jazz ensemble" as a medium of performance, e.g. Concertos (Flute with jazz ensemble); Jazz ensemble with orchestra; Suites (Jazz ensemble); Vibraphone with jazz ensemble; and headings for individual musical instruments and families of instruments with the subdivisions Methods (Jazz) or Studies and exercises (Jazz)
Here are entered comprehensive works on those countries having relatively low per capita incomes.This heading may be subdivided by those topical subdivisions used under names of regions, countries, etc., e.g. Developing countries--Economic conditions, and may be used as a geographic subdivision under those topics authorized for local subdivision, e.g. Technology--Developing countries.
