Cymbals are a rhythm piece of a normal drumline. There is usually an equal amount of cymbals as there is Snares. The 4 main sounds known are chips, crashes, fusions, and sizzles. However, the list goes on to say rolls, zings, dome hits, and so on. More info can be found at Zildjian.com. The most known brand of marching cymbals are the Zildjian Stadium collection and the Sabian AA Marching Band collection. However, other companies, such as Paiste, do make marching cymbals.