The keyword term "september 11th concert" functions as a noun phrase. The main point or head of this phrase is the noun "concert." The preceding element, "september 11th," serves as a modifier that specifies the nature of the concert.
In this grammatical construction, "september 11th" acts as an adjectival phrase or a compound modifier. It describes and qualifies the noun "concert," answering the question "Which concert?" or "What kind of concert?" This usage, where a date or another noun modifies a subsequent noun, is a common English structure used to create a more specific term. The entire phrase refers to a single, specific conceptual unit: a musical event thematically linked to or occurring on the anniversary of September 11th.
Crucially for the article, identifying "concert" as the core noun establishes that the primary subject is the event itselfits performers, music, purpose, and audience. The adjectival modifier "september 11th" provides the essential context, frame, and significance of the event. Therefore, the article's focus should be on the concert as an entity, understood through the specific lens of its connection to the historical events of September 11th.
