Strings	Woodwinds	Brass	Percussion
18- 1st Violins 14 - 2nd Violins 12 - Violas 12 - Cellos 8 - Double Basses	4 - Flutes 3 - Oboes 1 - English Horn 3 - Clarinets 1 - Bass Clarinet 3 - Bassoons 1 - Contrabassoon	5 - French Horns 4 - Trumpets 3 - Trombones 1 - Tuba	2 - Timpani 3 - Untuned Percussion 1 - Tuned Percussion 2 - Harps

The actual instrumentation of the symphony orchestra is dictated by the composer's indications in the score. In fact, on any given performance of a symphony orchestra, the instrumentation may change on every composition performed. The instrumentation shown above is the result of dramatic changes throughout the centuries. There has been a great expansion from the Baroque orchestra to the modern symphony orchestra.

SUGGESTED LISTENING EXAMPLES:

Orchestra, modern size:
Brahms: Symphony No. 1 in C minor, Op. 68, IV (main theme, strings)

W. W. Norton - 4-CD Musical Example Bank -- Disc 1, Track 11

Mendelssohn: Symphony No. 4 in A major, Op. 90 (Italian), I

W. W. Norton - 4-CD Musical Example Bank -- Disc 1, Track 13

Mendelssohn: Symphony No. 4 in A major, Op. 90 (Italian), IV

W. W. Norton - 4-CD Musical Example Bank -- Disc 1, Track 40

Holst: The Planets, Op. 32, "Jupiter, The Bringer of Jollity"

W. W. Norton - 4-CD Musical Example Bank -- Disc 1, Track 50

Orchestra, Baroque:
Handel: Concerto Grosso in G major, Op. 6, No. 1, I

W. W. Norton - 4-CD Musical Example Bank -- Disc 1, Track 31

Orchestra, Classical:
Mozart: Symphony No. 40 an G minor, K. 550, I

W. W. Norton - 4-CD Musical Example Bank -- Disc 1, Track 32