nd
the volume of tone at its command, and here the composer may choose at
will. The group may be divided into three general classes: wood-wind
instruments in pair's, in three's and in four's, (see table on page
13).

Arabic numerals denote the number of players on each instrument; roman
figures, the parts (1st, 2nd etc.). Instruments which do not
require additional players, but are taken over by one or the other
executant in place of his usual instrument, are enclosed in brackets.
As a rule the first flute, first oboe, first clarinet and first
bassoon never change instruments; considering the importance of their
parts it is not advisable for them to turn from one mouth-piece to
another. The parts written for piccolo, bass flute, English horn,
small clarinet, bass clarinet and double bassoon are taken by the
second and third players in each group, who are more accustomed to
using these instruments of a special nature.

---------------------+--------------------------+-------------------------+
Wood-wind | Wood-wind | Wood-wind |
in pair's | in three's | in four's |
---------------------+--------------------------+-------------------------+
| | |
(II--Piccolo). | (III--Piccolo). | 1 Piccolo (IV). |
| | |
2 Flutes I. II. | 3 Flutes I. II. III. | 3 Flutes I. II. III. |
| | |
| (II--Bass flute). | (III--Bass flute). |
| | |
2 Oboes I. II. | 2 Oboes I. II. | 3 Oboes I. II. III. |
| | |
(II--Eng. horn). | 1 Eng. horn (III). | 1 Eng. horn (IV). |
| | |
| (II--Small clarinet). | (II--Small clarinet). |
| | |
2 Clarinets I. II. | 3 Clarinets I. II. III. | 3 Clarinets I. II. III. |
| | |
(II--Bass clarinet). | (III--Bass clarinet). | 1 Bass clarinet (IV). |