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
Print Email. Scott Joplin, riding high in the early flush of his success, wrote the jaunty words on the preceding page for a song that he fashioned in 1904 from his sensational piano rag hit of 1899. And âThe Maple Leaf Ragâ was all that he claimed; it changed his life, and it changed American music.