An overture is an introductory section to an opera or oratorio. It is an orchestral piece at the beginning of an opera, which gives <span>introduction to the </span>musical<span> work.
</span>The first significant use of a full-scale overture, however, was made by Jean-Baptiste Lully<span>, in works such as his opera </span><span>Thésée.</span>
The major scale has a bright, cheery tonality.
