A Jazz Orchestra typically consists of 15-20 musicians, although the size can vary depending on the specific orchestra and the music being performed.

The trumpet is often used as the lead instrument in a Jazz Orchestra, due to its bright and piercing sound.

The rhythm section in a Jazz Orchestra typically consists of the piano, bass, and drums. Their primary role is to provide harmonic support, create a steady beat, and add melodic interest to the music.

The violin is not a common instrument found in a Jazz Orchestra, as it is more commonly associated with classical music.

Duke Ellington is widely regarded as one of the most influential Jazz Orchestra leaders of all time, known for his innovative compositions and arrangements.

Trading fours is the term used to describe the improvised solos performed by members of the Jazz Orchestra, where each musician takes turns soloing for four bars.

Bebop bands are not typically considered to be a type of Jazz Orchestra, as they are smaller in size and characterized by their fast tempos and complex harmonies.

The conductor in a Jazz Orchestra has the primary function of leading the orchestra, keeping time, and providing cues to the musicians.

String sections are not typically found in Jazz Orchestras, as they are more commonly associated with classical music.

Timbre is the term used to describe the overall sound and style of a Jazz Orchestra, which is characterized by its unique blend of instruments and the way they interact with each other.

Opera houses are not typically considered to be common venues for Jazz Orchestras to perform, as they are more commonly associated with classical music.

A chart is the term used to describe the written music that serves as the basis for a Jazz Orchestra's performance. It typically includes the melody, chords, and arrangement of the piece.

Arrangers are not typically considered to be musicians in a Jazz Orchestra, as their role is to create the written music (chart) that the orchestra performs.

Chorus is the term used to describe the improvised section of a Jazz Orchestra piece where musicians take turns soloing.

Guitar is not typically found in the rhythm section of a Jazz Orchestra, as it is more commonly associated with other genres such as blues and rock.