Duplication in the brass group is most frequently effected by placing a chord for horns side by side with the same chord written for trumpets or trombones. The soft round quality of the horns intensifies the tone, and moderates the penetrating timbre of the trumpets and trombones:
Similar juxtaposition of trumpets and trombones:
is not so common, as this unites the two most powerful agents in the group.
In handling an orchestra the brass is frequently employed to sustain notes in two or three octaves; this sphere of activity must not be ignored. The tenuto is generally given to two trumpets, or to two or four horns in the octave, (in double octaves). The octave is sometimes formed by trumpets and horns acting together:
