This heading is assigned to blues with voice(s) or for two or more instrumentalists. --headings for music of individual instruments followed by the qualifier "(Blues)" and the subdivisions Methods (Blues) and Studies and exercises (Blues) under individual musical instruments and families of instruments
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)