How does orchestral music typically differ from chamber music?

Chamber music is characterized by its intimate setting and is traditionally composed for a small ensemble, often with one player per musical part. This means that each instrument or voice in chamber music has a distinct role without duplication by other musicians, allowing for a more focused dialogue between players. This intimacy and the unique contributions of each performer are what define chamber music.

In contrast, orchestral music involves larger groups of musicians and typically features multiple instruments playing the same parts, adding richness and complexity to the texture of the music. Orchestration allows for a wider array of sounds and dynamics, often leading to a more elaborate musical structure.

Thus, the key difference highlighted in the correct choice illustrates how chamber music's emphasis on individual parts creates a distinct listening experience compared to the fuller, more layered sound of orchestral music. The other choices may contain assumptions that do not accurately represent the nature of chamber and orchestral music.