EUPHONIUM (Fr. baryton; Ger. Tenor Tube)

This article appears in Volume V09, Page 892 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: EUD-FAT

EUPHONIUM (Fr. baryton; Ger. Tenor Tube) , a modern brass wind

instrument

INSTRUMENT (Lat. instrumentum, from insincere, to build up, furnish, arrange, prepare)

, known in military bands as euphonium and in the orchestra as

tuba

TUBA

. The euphonium consists of a brass tube with a conical bore of wide calibre ending in a wide-mouthed bell; it is played by means of a cup-shaped mouthpiece. The sound is produced as in the bombardon, which is the

bass

of the euphonium, by the varied tension of the lips across the mouth-
' For a discussion of this see ARCHON.piece, whereby the natural open notes or harmonics, consisting of the

series

SERIES (a Latin word from serere, to join)

here shown, are obtained.
The intervening notes of the chromatic scale are obtained by means of valves or pistons usually four in number, which by opening a passage
into additional lengths
of tubing lower the pitch =-m . i H Meemhnn
one, half, one-and-a-half, -mi4' 4i
two-and-a-halftones (see b~_ T
BOMBARDON;

TUBA

TUBA

; I z 3 4 6 8 VALVES). The euphonium gives out the fundamental, or first note of the harmonic

series

SERIES (a Latin word from serere, to join)

, readily, but no harmonic above the eighth. Euphoniums are made in C and in Bb, the latter being more generally used. By means of all the valves used at once, the Bb, an

octave

OCTAVE (from Lat. octavus, eighth, octo, eight)

below the fundamental, can be reached, giving a compass of four octaves, with chromatic intervals. The

bass

clef is used in notation. The euphonium is treated by French and German composers as a transposing

instrument

INSTRUMENT (Lat. instrumentum, from insincere, to build up, furnish, arrange, prepare)

; in England the real notes are usually written, except when the treble clef is used. The quality of tone is

rich

and full, harmonizing well with that of the trombone. The euphonium speaks readily in the lower

, but slowly, of course, owing to the

long

LONG, GEORGE (1800-1879)
LONG, JOHN DAVIS (1838– )

dip of the pistons. Messrs Rudall Carte have removed this difficulty by their patent short action pistons, which have but half the dip of the old pistons. On these

instruments

INSTRUMENTS

it is easy to execute rapid passages.
The euphonium is frequently said to be a saxhorn, corresponding to the baryton member of that family, but the statement is misleading. The bombardon and euphonium, like the saxhorns, are the outcome of the application of valves to the bugle family, but there is a radical difference in construction; the tubas (bombardon and euphonium) have a conical bore of sufficiently wide calibre to allow of the production of the fundamental harmonic, which is absent in the saxhorns. The Germans classify brass wind

instruments

INSTRUMENTS

as whole and half' according to whether, having the wide bore of the bugle, the whole length of the tube is available and gives the fundamental proper to an organ pipe of the same length or whether by reason of the narrow bore in proportion to the length, only half the length of the instrument is of

practical

PRACTICAL

utility, the harmonic series beginning with the second harmonic. (See BOMBARDON.) (K. S.)

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