Final answer:
In music, metrical refers to organized beats with a regular pattern, while nonmetrical lacks a consistent beat. Jazz improvisation is nonmetrical, classical symphony is metrical, pop songs with a steady beat are metrical, and Indian classical music can be both metrical and nonmetrical.
Step-by-step explanation:
In music, meter refers to the organization of beats into regular patterns. Metrical music follows a consistent rhythmic pattern, whereas nonmetrical music does not have a regular beat. Let's apply this to the given musical excerpts:
- Jazz improvisation: Jazz improvisation is often nonmetrical, as it involves free-flowing improvisation without strict adherence to a beat.
- Classical symphony: Classical symphonies are typically metrical, as they follow a strict rhythmic structure and use a regular beat.
- Pop song with a steady beat: A pop song with a steady beat is metrical, as it maintains a consistent rhythm and beat throughout.
- Indian classical music: Indian classical music can be both metrical and nonmetrical, depending on the specific composition and style. Some compositions may have a steady beat, while others may have more fluid and nonmetrical rhythms.