ctave
higher than the ordinary trumpet has not yet appeared in
musical literature.

b) _Cornets_ (in _B[flat]-A_). Possessing a quality of tone similar to
the trumpet, but softer and weaker. It is a beautiful instrument
though rarely employed today in theatre or concert room. Expert
players can imitate the cornet tone on the trumpet, and _vice versa_.

c) _Horn_ (in _F_). The tone of this instrument is soft, poetical, and
full of beauty. In the lower register it is dark and brilliant; round
and full in the upper. The middle notes resemble those of the bassoon
and the two instruments blend well together. The horn, therefore,
serves as a link between the brass and wood-wind. In spite of valves
the horn has but little mobility and would seem to produce its tone in
a languid and lazy manner.

d) _Trombone._ Dark and threatening in the deepest register, brilliant
and triumphant in the high compass. The _piano_ is full but somewhat
heavy, the _forte_ powerful and sonorous. Valve trombones are more
mobile than slide trombones, but the latter are certainly to be
preferred as regards nobility and equality of sound, the more so from
the fact that these instruments are rarely required to perform quick
passages, owing to the special character of their tone.

e) _Tuba._ Thick and rough in quality, less characteristic than the
trombone, but valuable for the strength and beauty of its low notes.
Like the double bass and double bassoon, the tuba is eminently useful
for doubling, an octave lower, the bass of the group to which it
belongs. Thanks to its valves, the tuba is fairly flexible.

Table C. Brass group.

These instruments give all chromatic intervals.

Trumpet, Cornet.
(_B[flat]-A, alto in F_).[A]

Horn
(_F, E_).

Trombone
(tenor-bass).[B]

Tuba
(_C_-bass).

[Music]

Natural sounds are given in white notes. The upper lines indicate the
scope of greatest expression.

[Footnote A: The 7th natural harmonic is everywhere omitted as
useless; the same in the horns, the notes 11, 13, 14 and 15.]

[Footnote B: The _b[natural]_ of the octave -1 does not exist on the
trombones.]

The group of brass instruments, though uniform in resonance throughout
its constituent parts, is not so well adapted to expressive playing
(in the exact sense of the word) as the wood-wind group. Nevertheless,
a scope of greatest expression may be distinguished in the middle
registers. In company with the piccolo and double