The French horn (since the known simply as the "horn" in some professional music circles) is a brass instrument made of tubing wrapped into a coil with a flared bell. Is the horn most often used by players in professional orchestras and bands.
six valve trumpet. One advantage of the six valve trumpet seen on the right was better intonation. This particular instrument was designed by Adolphe Sax, the inventor of the saxophone. However, besides having a different and more challenging fingering system, the added weight of this horn was also an issue.
Sopralto Braithophone - an instrument combining soprano and alto saxophones into one horn. Invented by musician George Braith. Apparently this is a fairly new instrument. This connects to the Braithophone Center which features a short audio clip.