The immune system includes certain types of white blood cells. It also includes chemicals and proteins in the blood, such as antibodies, complement proteins, and interferon. Some of these directly attack foreign substances in the body, and others work together to help the immune system cells.
Scott Joplin. Scott Joplin was the best-known American ragtime musician and composer, setting the standard for all that followed. Ragtime â which gave birth to Jazz â has a rhythm in which the accompaniment is strict two-four time and the melody, with improvised embellishment, is in steady syncopation. Joplin`s instrument of choice was the piano. Early days
Scott Joplin, the composer, spent only a few years of his life in Sedalia before he moved on to St. Louis and New York. The music publisher met Joplin only by chance; one story has it that he liked the music he heard one day when he stopped off for a beer. It was in all ways an unlikely combination. And yet it happened-with the result that later this month, Sedalia, Missouri, will be throwing a party to celebrate the 100th anniversary of its most famous export: Scott Joplin's Maple Leaf Rag. Joplin wasn't the only composer of ragtime in the 1890s, or even the first one. The new music, which blended march tempos, minstrel-show songs, and the ragged or syncopated rhythms, was percolating throughout the Midwest wherever African-American musicians gathered.