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See also:HARMONIUM (Fr. harmonium, orgue expressif; Ger. Physharmonika, Harmonium)
, a See also:wind See also:keyboard See also:instrument, a small See also:organ without pipes, furnished with See also:free reeds
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Both the See also:harmonium and its later development, the See also:American organ, are known as free-See also:reed See also:instruments, the musical tones being produced by See also:tongues of See also:brass, technically termed " vibrators " (Fr. anche libre; Ger. durchschla.gende Zunge; Ital. ancia or lingua libera)
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The vibrator is fixed over an oblong, rectangular See also:frame, through which it swings freely backwards and forwards like a pendulum while vibrating, whereas the beating reeds (similar to those of the See also:clarinet See also:family), used in See also:
These compartments are of about two octaves and a See also:half each, there being a See also:division in the See also:middle of the keyboard See also:scale dividing the stops into See also:bass and See also:treble
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A stop being drawn and a See also: These may be mechanically combined by a stop called full organ . The See also:French maker, Mustel, added other registers for much-admired effects of tone, viz . " harpe eolienne, two bass rows of 2 ft. pitch, the one tuned a See also:beat too See also:sharp, the other a beat too See also:flat, to produce a waving tremulous tone that has a certain See also:charm; " musette " and " voix See also:celeste," 16 ft.; and " baryton," a treble stop 32 ft., or two octaves See also:lower than the normal note of the key . The " back organ" is usually covered by a swell See also:box, containing louvres or shutters similar to a Venetian See also:blind, and divided into fortes corresponding with the bass and treble .division of the registers . The fortes are governed by See also:knee pedals which See also:act by pneumatic pressure . Tuning the reeds is effected by scraping them at the point to sharpen them, or near the See also:shoulder or See also:heel to flatten them in pitch . Air pressure affects the pitch but slightly, being noticeable only in the larger reeds, and harmoniums See also:long retain their tuning, a decided See also:advantage over the organ and the See also:pianoforte . Mechanical contrivances in the harmonium, of frequent or occasional employment, besides those already referred to, are the " percussion," a small pianoforte action of See also:hammer and escapement which, acting upon the reeds of the diapason rows at the moment air is admitted to them, gives prompter response to the depression of the key, or quicker speech; the " double expression," a pneumatic See also:balance of See also:great delicacy in the wind reservoir, exactly maintaining by gradation equal pressure of the wind; and the double touch," by which the back organ registers speak sooner than those of the front that are called upon by deeper pressure of the key, thus allowing prominence or accentuation of certain parts by an See also:expert performer . " Prolongement permits selected notes to be sustained after the fingers have quitted their keys . See also:Dawes's " See also:melody See also:attachment " is to give prominence 1782 . Meanwhile, in 1780, a countryman of Kratzenstein's, an to an air or treble See also:part by shutting off in certain registers all notes organ-builder named Kirsnick, established in St See also:Petersburg, adapted below it . This notion has been adapted by See also:inversion to a " pedal 1 these reed pipes to some of his organs and to an instrument of his substitute " to strengthen the lowest bass notes . The " tremolo " tl invention called organochordium, an organ combined with piano. affects the wind in the vicinity of the reeds by means of small bellows which increase the velocity of the pulsation according to pressure; and the " sourdine " diminishes the supply of wind by controlling its See also:admission to the reeds . The American Organ acts by wind exhaustion . A vacuum is practically created in the air-chamber by the exhausting See also:power of the footboards, and a current of air thus drawn downwards passes through any reeds that are See also:left open, setting them in vibration . This instrument has therefore exhaust instead of force bellows . Valves in the board above the air-chamber give communication to reeds (fig . 2) made more slender than those of the harmonium and more or less See also:bent, while the frames in which they are fixed are also differently shaped, being hollowed rather in See also:spoon See also:fashion . The channels, the resonators above the reeds, are not varied in See also:size or shape as in the har- monium; they exactly correspond with the reeds, and are collectively known as the " See also:tube- board." The swell " fortes " are in front of the openings of these tubes, rails that open or See also:close by the action of the knees upon what may be called knee pedals . The American organ has a softer tone than the harmonium; this is sometimes aided by the use of extra resonators, termed pipes or qualifying tubes, as, for instance, in See also:Clough & See also:Warren's (of See also:Detroit, See also:Michigan, U.S.) . The blowing being also easier, ladies find it much less fatiguing . The expression stop can have little power in the American organ, and is generally absent ; the " automatic swell " in the instruments of See also:Mason & See also:Hamlin (of See also:Boston, U.S.) is a contrivance that comes the nearest to it, By courtesy of Metzler though far inferior . By it a swell shutter or & Co. See also:rail is kept in See also:constant See also:movement, proportioned FIG . 2.-Free Reed to the force of the air-current . Another very Vibrator, mason & See also:clever improvement introduced by these Hamlin American makers, who were the originators of the instru- Organ. ment itself, is the " vox hurnana," a smaller rail or See also:fan, made to revolve rapidly by wind pressure; its rotation, disturbing the air near the reeds, causes interferences of vibration that produce a tremulous effect, not unlike the beatings heard from combined voices, whence the name . The arrangement of reed compartments in American organs does not essentially differ from that of harmoniums; but there are often two keyboards, and then the solo and combination stops are found on the upper See also:manual . The diapason treble See also:register is known as " melodia different makers occasionally vary the use of See also:fancy names for other stops . The " sub-bass," however, an octave of i6 ft. pitch and always apart from the other reeds, is used with great advantage for pedal effects on the manual, the compass of American organs being usually down to F tFF, 5 octaves) . In large instruments there are sometimes foot pedals as in an organ, with their own reed boxes of 8 and 16 ft., the lowest note being then CC . Blowing for pedal instruments has to be done by See also:hand, a See also:lever being attached for that purpose . The " celeste " stop is managed as in the harmonium, by rows of reeds tuned not quite in unison, or by a shade valve that alters the air-current and flattens one See also:row of reeds thereby . Harmoniums and American organs are the result of many experiments in the application of free reeds to keyboard instruments . The principle of the free reed became widely known in See also:Europe through the introduction of the See also:Chinese See also:cheng 1 during the second half of the 18th See also:century, and culminated in the invention of the harmonium and kindred instruments . The first step in the invention of the harmonium is due to See also:Professor See also:Christian Gottlieb Kratzenstein of See also:Copenhagen, who had had the opportunity of examining a cheng sent to his native See also:city and of testing its merits' In 1779 the See also:Academy of See also:Science of St Petersburg had offered a See also:prize for an See also:essay on the formation of the vowel sounds on an instrument similar to the " vox humana " in the organ, which should be capable of reproducing these sounds faithfully . Kratzenstein made as a demonstration of his invention a small pneumatic organ fitted with free reeds, and presented it to the Academy of St Petersburg.' His essay was crowned and was republished with diagrams in See also:Paris 4 in i See Allg. musik . Ztg . (See also:Leipzig, 1821), Bd. See also:xxiii. pp . 369-374 . The cheng was made known in See also:France by Pere See also:Amiot, who published a careful description of the instrument in Memoire sur la musique See also:des Chinois, p . 8o seq., with excellent diagrams . z lb., Bd. See also:xxv. p . 152 . The essay was published in Acta Acad . Petrop . (1780) . 4 " Essai sur la naissance et sur la formation des voyelles " in Rozier's Observations sur la physique (Paris, 1782), Supplement, xxi . 358 sec}, with two plates . The description of the instrument begins on p . 374, § xxii . When See also:Abt See also:Vogler visited St Petersburg in 1788, he was so delighted with these reeds that in 1790 he induced Rackwitz, an assistant of Kirsnick's, to come to him and adapt some to an organ he was having built in See also:Rotterdam . Three years later Abt Vogler's See also:orchestrion, a chamber organ containing some 900 pipes, was completed, and, according to Rackwitz,' was fitted with free-reed pipes . Vogler himself, however, does not mention the free reed when describing this wonderful instrument and his See also:system of " simplification " for church organs.' To Abt Vogler, who travelled all over See also:Germany, Scandinavia and the See also:Netherlands, exhibiting his skill on his orchestrion and reconstructing many organs, is due the See also:credit of making Kratzenstein's invention known and inducing the musical See also:world to appreciate the capabilities of the free reed . The introduction of free-reed stops into the organ, however, took a secondary See also:place in his scheme for reform .? See also:Friedrich See also:Kaufmann of See also:Dresden states that Vogler told him he had imparted to J . N . Malzel of See also:Vienna particulars as to the construction of free-reed pipes, and that the latter used them in his panharmonicon,5 which he exhibited during his stay in Paris from 1805 to 1807 . Kaufmann suggests that it was through him that G . J . Grenie obtained the knowledge which led to his experiments with free reeds in organs . It is more likely that Grenie had read Kratzenstein's essay and had experimented in-dependently with free reeds . In 1812 his first argue expressif was finished . It was a small organ with one register of free reeds—the expression stop, in fact, added to the See also:pipe organ and having a separate wind-chest and. bellows . It would seem from his description of the orchestrion in Data zur Akustik that Vogler knew of no such See also:device . He used the swell shutter borrowed from See also:England and a threefold See also:screen of See also:canvas covered with a blanket arranged outside the instrument, neither of which is capable of increasing the See also:volume of sound from the organ, or at least only after having first damped the sound to a pianissimo . Vogler explains minutely the apparatus used to conceal the working of the screen from the eyes of the public.1t The credit of discovering in the free reed the capability of dynamic expression was undoubtedly due to Grenie, although Abt Vogler claims to have used compression in 1796," and Kaufmann in his choraulodion in 1816 . A larger argue expressif was begun by Grenie for the See also:Conservatoire of Paris in 1812, the construction of which was interrupted and then continued in 1816 . Descriptions of Grenie's instrument have been published in French and See also:German.1i The organ of the Conservatoire had a pedal free-reed stop of 16 ft., with vibrators 0.240 M. long, 0.035 M. wide, and 0.003 M. thick." Two compressors, one for the treble and the other for the bass, worked by treadles, enabled the performer to regulate the pressure of wind on the reeds and therefore to obtain the gradations of forte and piano which gained for his instrument the name of argue expressif . Grenie's instrument was a pipe organ, the pipes terminating in a See also:cone with a hemispherical cap in the See also:top of which was a small hole . There were eight registers including the pedal, and the See also:positive on the first keyboard had reed stops furnished with 5 See " Uber See also:die Erfindung der Rohrwerke mit durchschlagenden 'Zungen," by Wilke, in Allg. musik . Ztg . (Leipzig, 1823), Bd. xxv. pp . 152-153 and Bd. See also:xxvii. p . 263; also Thos . See also:Ant . Kunz, " Orchestrion,' id., Bd. i. p . 88 and Bd. ii. pp . 514, 542; and Dr Karl Emil von Schafhautl, Abt Georg See also:Joseph Vogler (See also:Augsburg, 1888), p . 37 . 6 Data zur Akustik, eine Abhandlung vorgelesen See also:bey der Sitzung der naturforschenden Freunde in See also:Berlin, den I5ten Dezember 1800 (See also:Offenbach, 18o,); also published in Allg. musik, Ztg . (18oi), Bd. iii. pp . 517, 533, 565 . See also an excellent See also:article by the Rev . J . H .
Mee on Vogler in See also: Ztg . Bd. in. p . 523 . rz See J . B . See also:Biot, Precis elementaire de physique experimentale (Paris, 1817), tome i. p . 386, and his Traite de physique (Paris, 1816), tome ii. p . 172 et seq., pl. ii.; " Uber die Crescendo and Diminuendo Zuge an Orgeln," by Wilke and Kaufmann, Allg. musik . Ztg . (1823), Bd. xxv. pp . 113-122; and Allg. musik . Ztg . Bd. xxiii. pp . 133-139 and 149-154, with diagrams on p . 167 which are not absolutely correct in small details . l3 J . B . Biot, Traite, tome ii. p . 174 . beating reeds . Biot insists on the importance of the regulating wires (Fr. rasettes; Ger . Kriiicken) for determining the vibrating length of the reed See also:tongue and maintaining it invariable . These are clearly shown in his See also:diagram (see article FREE REED VIBRATOR, fig . I) ; they do not essentially differ from those used with the beating-reed stops in his organ (fig . 76, pl . II.),sor indeed from those figured by See also:Praetorius . Isolated specimens of the cheng must have found their way to Europe during the 15th and 16th centuries, for Mersennea depicts part of one showing the free reed . It would seem that still earlier In the 17th century there was an organ in a monastery in See also:Hesse with free reeds for the Posaune stop, for Praetorius gives a description of the " extraordinary " reed (p . 169) ; there is no See also:record of the inventor in this See also:case . During the first half of the 19th century various tentative efforts in France and Germany, and subsequently in England, were made to produce new keyboard instruments with free reeds, the most notable of these being the See also:physharmonica 2 of Anton Hackel, invented in Vienna in 1818, which, improved and enlarged, has retained its hold on the German See also:people . The See also:modern physharmonica is a harmonium without stops or percussion action; it does not therefore speak readily or clearly . It has a range of five to six octaves . Other instruments of similar type are the French melophone and the See also:English seraphine, a keyboard See also:harmonica with bellows but no channels for the tongues, for which a patent was granted to See also:Myers and Storer in 1839; the aeoline or aelodicon 2 of Eschenbach; the melodicon a of Dietz; the melodica 6 of Rieffelson; I Harmonie universelle (Paris, 1636), livre v., prop. See also:xxxv . 2 Wien. musik . Ztg . Bd. v . Nos . 3o and 87 . 3 Allg. musik . Ztg . Bd. xxii. p . 505, and Bd. xxxv. p . 354 . 6 Id . Bd. viii. pp . 526 and 715 . b Id . Bd. xi. p .
625
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the apollonicon; 8 the new cheng 2 of Reichstein; the terpodion e of Buschmann, &c
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None of these has survived to the See also:present See also:day
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The inventor of the harmonium was indubitably Alexandre Debain, who took out a patent for it in Paris in 184o
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He produced varied timbre registers by modifying reed channels, and brought these registers on to one keyboard
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Unfortunately he patented too much, for he secured even the name harmonium, obliging See also:con-temporary and future experimenters to shelter their improvements under other names, and the See also:venerable name of organ becoming impressed into connexion with an inferior instrument, we have now to distinguish between reed and pipe organs
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The See also:compromise of reed organ for the harmonium class of instruments must therefore be accepted
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Debain's harmonium was at first quite mechanical; it gained expression by the expression-stop already described
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The Alexandres, well-known
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French makers, by the ingenuity of one of their workmen, P
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A
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See also: The melody attachment was the invention of an English engineer; the introduction of the double touch, now used in the harmoniums of Mustel, See also:Bauer and others—also in American organs—was due to Tamplin, an English professor . The principle of the American organ originated with the Alexandres, whose earliest experiments are said to have been made with the view of constructing an instrument to exhaust air . The realization of the See also:idea proving to be more in consonance with the See also:genius of the American people, to whom what we may See also:call the devotional tone of the instrument appealed, the introduction of it by Messrs Mason and Hamlin in 1861 was followed by remarkable success . They made it generally known in Europe by exhibiting it at Paris in 1867, and from that See also:time instruments have been exported in large See also:numbers by different makers . (A . J . H.; K . S.) 8 Allg. musik . Ztg . Bd. ii. p . 767, and Wien. musik . Ztg . Bd.' . No . 501 . 7 Id . Bd. xxxi. p . 489 . S Id . Bd. xxxiv. pp . 856 and 858 ; and Cacilia, Bd. xiv. p . 259 . |
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In my years of music and antiques, I have seen only 4 harmoniums that have any indications that they were made by DeBain's firm. From what I can deduce, these instruments are rare and worth considerable sums; in other words, these aren't "the run of the mill" Acme Queen parlour organs that were mass-produced by dozens of now defunct companies. These instruments are decidely unique due to design and age. While most reed organs have mirroring and shelving, these harmoniums were "boxy" and desk-like, and had much more ornateness in wood working and choice of wood. The one I have is made of French palisander, and had the exact attention to detail that early Mid Victorian pieces possess. Age-wise, these instruments may have at least 25 or more years' senority.
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