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.
The classical period is between the baroque and romantic periods. This means that music from the classical period is music composed between about 1750 to 1820. The greatest composers of the classical period are. 1  Wolfgang Amadeus Mozart (1756â1791).  Ludwig van Beethoven (1770â1827).