
Cornet
Musical Context
 Often used when talking about orchestras or bands, especially in descriptions of their members or the sounds they produce. 
The band's cornet section added a bright tone to the performance.
 Not Interchangeable
 Although similar, the cornet and trumpet have distinct sounds, so don't use the terms as if they're the same. 
I could discern the mellow sound of the cornet from the sharper trumpet tones.