Figure 4. Proposed phylogenetic evolution of sexual reproduction in eukaryotic organisms. Facultatively sexual organisms are labeled âFa,â obligately sexual organisms are labeled âO,â and no evidence of sex (possibly asexual taxa) are labeled âA.â Lengths of branches are arbitrary. Dacks, J. and A. Roger. 1998.
Please try again later. Antonio Vivaldi The Four Seasons Full HD (Italian: Le quattro stagioni) is a set of four violin concertos by Antonio Vivaldi Full Concert. Composed in 1723, The Four Seasons is Vivaldi's best-known work, and is among the most popular pieces of Baroque music.
Music representing the moods of the four seasons has always been popular, and baroque composers such as Werner and Fischer among others produced cycles of concertos representing the fours seasons. But none were to do so in such precise pictorial detail as Antonio Vivaldi in his Four Seasons concertos. As a descriptive basis for his Four Seasons, Vivaldi took four Sonnets, apparently written by himself. Each of the four sonnets is expressed in a concerto, which in turn is divided into three phrases or ideas, reflected in the three movements (fast-slow-fast) of each concerto.