The keyword term "background patriotic music" is a noun phrase. The main point and grammatical head of this phrase is the noun "music".
In this construction, "music" serves as the core subject. The words "patriotic" and "background" function as modifiers that describe and specify the type and function of the music. "Patriotic" is an adjective defining the theme or character of the music (evoking love for one's country). "Background" acts as an attributive noun (a noun used as an adjective) to indicate its intended useto be played unobtrusively behind a primary activity or audio-visual content.
Therefore, for the purpose of the article, the central topic is a specific category of music. The analysis should focus on musical elements, compositions, and their effects, as defined by the qualifiers "patriotic" (thematic content) and "background" (functional role). This distinction is critical as it frames the article's subject not as patriotism or ambient sound in general, but specifically as musical pieces embodying both qualities.
