The cornet looks like a trumpet, but has a more compact construction, that makes it look smaller. Due to its more conical build, the cornet has a slightly more round tone than the trumpet. It can be tuned in B-flat or E-flat, where B-flat is the most common. The cornet is often used in brass bands, but is also found in military band, wind band, jazz, and orchestral music, such as The Swan Lake. The cornet also comes in the key of C, but it's very rare.