Membranes contain large amounts of lipids, which are notoriously hydrophobic (water and oil don't mix). The membrane-spanning regions of membrane proteins are typically alpha helices, made of hydrophobic amino acids.
Florence, for example, hosted a brilliant period of musico-theatrical innovation at the dawn of the seventeenth century that led to the flowering of early opera. Rome continued to influence sacred music and for a time became an important center of opera, several types of vocal chamber music, and instrumental music. Venice, a leading musical city throughout the seventeenth century, nurtured the development of opera, as did Naples in the eighteenth century.
The Baroque period in music is often described as ornate and intense. Music from this period often features emotions expressed through repeating melodies and quick changes in volume, pace and other aspects.. The organ and other keyboard instruments were important catalysts in driving composers to create more complex music in the Baroque era. Learn how the instruments work and why they played such an important role during this time period.