Bossa Nova A latin style of instrumental music, originating in 1950's Brazil, derived from Samba, and characterized by a gentle mood, moderate to slow Samba rhythm and bass line, blended with subdued percussion and somewhat complex harmonic flavors heavily influenced by mid-20th century Jazz .
Changing Note An unaccented and non-harmonic note that is passed by on the way to play a major third interval, most commonly in a downwards direction.
Chorale Originally, a hymn tune of the Lutheran Church characterized by blocked chords. In casual modern usage, a classical setting, eg, by JS Bach, of such a tune, in usually four-voiced, that proceeds in a primarily one-tone texture with both harmonic progression and individual voice-leading having equal importance. For this reason, they are often used as theory examples.
Escape Note A non-harmonic note or tone (outside of the currently played chord) - compare changing note.
Jazz 1. A style of music, native to America, characterized by a strong but flexible rhythmic understructure with solo and ensemble improvisations on basic tunes and chord patterns and more recently, a highly sophisticated harmonic idiom. 2. Big band dance music.