The term 'Salon Sound' refers to a type of music that originated in the salons of Europe during the 18th and 19th centuries. It is characterized by its light, graceful melodies and often includes elements of classical music. The crossword solution for this term is SNIP, which stands for Salon Music In Performance. This type of music was typically performed in small, intimate settings such as salons, and was often used to entertain guests.