The excess mucus production that triggers postnasal drip has a number of possible causes, including: 1  Colds. 2  Flu. 3  Allergies (called allergic postnasal drip). 4  Sinus infection or sinusitis (inflammation of the sinuses). 5  Object stuck in the nose (more common in children).
1. classical music-traditional genre of music conforming to an established form and appealing to critical interest and developed musical taste. classical, serious music. chamber music-serious music performed by a small group of musicians.
CMA defines chamber music as music composed for small ensembles, with one musician per part, generally performed without a conductor. The term once referred only to Western classical music for small ensembles, such as string quartets. But today chamber music encompasses myriad forms, including contemporary and traditional jazz, classical, and world genres.