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Pleyel Duoclave

Not available for use in Recording Studios

Not currently on exhibit

Artifact TypePiano, Grand

Manufacturer Pleyel et Cie French, 1807 - 2013

Manufacturer LocationFrance, Europe

Date1913

Two grand pianos in one, the rare and unorthodox duoclave was designed so two pianists could play simultaneously. It was built by the prestigious Parisian manufacturer Pleyel et Cie (Chopin was a fan of its work), but only a handful of the instruments were produced between the 1890s and 1920. This one suffered extensive water damage in its previous home at the Peabody Conservatory in Massachusetts, but, after being acquired by the Cantos Music Foundation in 1998, it received a full restoration.

An inscription on the fallboard reads ‘Pleyel’ and another inscription on the iron plate reads ‘Pleyel, Wolff et Cie, Paris'.

Operation/FunctionThis instrument effectively contains two grand piano actions, strings, over dampers, and keyboards combined within a single case and employing a single frame and soundboard. The exterior and interior are constructed primarily of rosewood, as well as spruce, pine, beech, and oak. Implements two sets of a full compass of 88 notes (AAA-c5) with ivory naturals and ebony accidentals. The action employed in this instrument is double-escapement.Cultural SignificanceSince establishing itself as a dominant force in the musical world during the late Classical period – when it effectively shifted the texture of an entire compositional language – the piano has remained among the most widely used and recognizable instruments, dually holding the honour of being the most recorded keyboard instrument in history. Although it is not generally known as being particularly inexpensive or portable, it is a highly adaptive and accommodating instrument, capable of penetrating the musical idioms of numerous genres ranging from classical and jazz to pop and experimental. Its sonic flexibility has mirrored its technological development, offering users increased control in terms of expression and articulation–controls that historical keyboard instruments such as the organ and harpsichord simply weren’t capable of executing. Equal temperament, which was developed largely in response to the rigid interface of the keyboard, became a vital component of the piano’s sonic character more so than in any other historical keyboard instrument; this tuning approach has, for better or for worse, remained the standard in Western music since the Baroque. By the beginning of the twentieth century, the piano had become the foremost domestic instrument, with developments in player piano and transposing technology reflecting an effort on part of the manufacturers of the time to reach an audience of amateur players; this shift in the social perception of the instrument subsequently helped proliferate it into popular music of the era. Still to this day, the piano is perhaps the only orchestral instrument that can be found in the middle-class European and North American homes of those who have not been trained in the conservatory or otherwise. Although the modern piano is a highly flexible instrument, many prefer to experience performances of period music on corresponding instruments of the era. Naturally, these instruments are apt to reflect the intentions of the composers and the aesthetic zeitgeist, so to speak, and can often disclose particularities in the music that may have been covered or altered by modernization.Technological SignificanceIn relation to the history of acoustic keyboard instruments, the technological importance of the piano simply cannot be overstated. The instrument can be seen as having developed from earlier chordophones such as the hammered dulcimer, which employed hand-held hammers to strike a series of horizontal strings, the harpsichord, a primarily Baroque instrument that implemented a series of wooden jacks to pluck the instrument’s strings when activated by the keyboard, and, the clavichord, a Renaissance instrument that directly appropriated the dulcimer’s design for use with a keyboard and a series of metal tangents, similar in concept to the hammers of the piano. The piano was invented in 1700 by Bartolomeo Cristofori (1655 – 1732), a harpsichord builder working in the Medici court in Florence, Italy. Cristofori’s most significant and defining contribution to the creation of the piano was his single-escapement action; the single-escapement action essentially modified the striking mechanism of the clavichord so as to allow the instrument’s hammers to return to their resting position immediately after striking the string. As a result, the string is able to resonate freely and produce a tone that is substantial in volume. Moreover, Cristofori’s design was oriented such that the hammer itself did not lift to the height of the string, which would result in a dampening of the sound; rather, the momentum induced by the wippen pushes the hammer upward from its maximum height to simply impact the string then fall downward naturally. The tangents of the clavichord are connected as levers to the keys; when activated, the tangent remains in contact with the string for as long as the key is held, absorbing a significant portion of the vibrations. As such, its tone is often rather muted and, thus, unsuitable for live performance. Cristofori’s piano was able to produce a larger sound akin to that of the harpsichord, however, in employing a struck rather than plucked action, it was also capable of producing expressive and nuanced variations in its articulation, tone, and dynamics. Although most sophisticated harpsichords implemented stops and multiple manuals that allowed the performer to vary the depth of the sound field to a certain extent, they were, by and large, incapable of offering any meaningful dynamic control. Cristofori is also credited with the creation of the backcheck mechanism, which prevents the hammer from repeated bouncing, which could result in an unwanted second striking of the string. The backcheck is a small component that stops the hammer in a slightly raised position as it falls back to a resting position, thus dissipating any residual momentum. Moreover, Cristofori replaced the blunt edge of the clavichord’s metal tangents with a circular coil of paper covered in leather. This padding made the hammer’s impact with the string softer, thereby emphasizing the resonance of lower harmonics in the strings vibrations and resulting in a richer tone. Cristofori also incorporated a dedicated bracing system for the instrument’s soundboard, allowing it to remain unaffected from changes in string tension. Thanks to the distribution throughout Germany in 1725 of an article translated from Italian that detailed Cristofori’s invention, the highly innovative and revolutionary approach caught on with instrument builders across another major production centre of harpsichords within the European continent. Among those who were most influenced by this design was the German harpsichord and organ builder Gottfried Silbermann (German, 1683 – 1753), who effectively produced copies of Cristofori’s instrument throughout much of the 1730s. Silbermann did expand upon the design, however, with the addition of the first damper pedal mechanism; each key contains its own damper, which lifts when the note is depressed and lowers when the note is released, thereby stopping any residual vibrations in the string, however activating the pedal mechanism allows the dampers to remain lifted even after the note is released, with the sound decaying naturally. An active piano building tradition soon developed in neighbouring Austria, resulting in what became known as the Viennese school. Viennese pianos continued Cristofori’s bichord voicing (two strings per note), but incorporated improved leather-tipped hammers and, in certain later instruments, a reversed striking orientation, with the hammers striking away from instead of toward the performer. Viennese instruments from the late eighteenth century are generally characterized as having a decidedly soft or gentle tonal quality. With the rise of the Industrial Revolution in the early and mid nineteenth century, the piano underwent a series of significant design and construction developments toward becoming its modern incarnation, including improvements in string material and orientation, the creation of the all-important cast-iron frame, the extension of the keyboard compass, the standardization of chorused voicing, the implementation of cross-stringing in bass strings, and the incorporation of a more flexible double-escapement action. These changes were subsumed by companies such as Broadwood and Sons of England, Sebastian Érard and Pleyel et Cie of France, and Steinway and Sons, Alpheus Babcock, and Chickering and Sons of the United States. Broadwood pianos, in contrast with those produced by Viennese manufacturers, embodied a relatively more robust and louder tone. Their pianos were also the first to extend the compass of the keyboard to the now-standard seven-octaves. In the 1820s, Paris replaced Vienna as the epicenter of piano building thanks to the contributions of manufacturers such as Érard Frères and Pleyel et Cie. In 1821, Sebastien Érard introduced the double-escapement action, which employed a repetition lever that allowed the hammer to strike again without having to first return to a resting position. This enabled the player to perform successive notes in a comparatively faster progression, which was well suited to an era characterized by the virtuosic solo piano works of composers such as Franz Liszt and Frédéric Chopin. Typically, instruments employing the earlier single-escapement action are referred to as fortepianos, while those employing the modernized double-escapement action are referred to as pianos. Single-escapement action remained in occasional use until the very early twentieth century; all modern pianos implement double-escapement. Another French builder, Henri Pape, replaced the leather-tipped hammer covers with the more expressive compressed felt-tips in 1826. Although the American manufacturers would later become the first to incorporate and therein standardize the use of the cast-iron frame into the piano, Pleyel holds the honour of being the first manufacturer to implement a basic form of a metal frame. The first wave of mass immigration by Europeans to the United States occurred in the early nineteenth century, resulting in a number of manufacturers settling on the country’s east coast. Notable among these were the firms of Steinway and Sons of New York City, and Alpheus Babcock and Chickering and Sons, both of Boston. Although the Americans introduced a number of significant improvements – including the cross-stringing of bass strings to create an optimal balance between tone and the size of the instrument, which was patented by Steinway in 1859, and chorused voicing – their greatest contribution was without doubt the implementation of the cast-iron frame. The cast-iron frame was first patented in 1825 by Alpheus Babcock, and introduced into the structure of the soundboard so as to enable substantially greater amounts of tension, resulting in a massively improved tone. Iron was favoured over other metals due to its ease of use, flexibility, and resistance to deterioration and manipulation. Piano strings were correspondingly designed to be thicker and in greater number, with the instrument’s upper register accommodating three strings per each note. The design approach put forth by the American manufacturers in the mid-nineteenth century was soon adopted by the majority of international builders and has largely remained the standard. Beginning in the late eighteenth century, two alternate designs emerged as variations of the harpsichord-shaped “grand” case characteristic of early fortepianos: the square piano and the vertical piano. The development of the square piano is often attributed to several builders, including Gottfried Silbermann and Johannes Zumpe (German, 1726 – 1790), the latter of whom spent the majority of his career in England and is often closely associated with the country’s building tradition rather than that of his native Germany. Square pianos, which featured a horizontal cross-stringing design, were used extensively throughout the late eighteenth and early nineteenth centuries, and were lauded for their being relatively inexpensive, smaller than their fortepiano counterparts, and generally more accessible to the burgeoning middle class. As a result of the compromised design, however, the instrument’s tone suffered considerably. Moreover, attempts to overcome the poor tone quality of the instrument resulted in gradual increases in its size, making them correspondingly less practical. The vertical piano emerged from the London workshop of Robert Wornum in the early 1800s, and by the end of the century, had far surpassed the square piano in popularity and usage. Vertical pianos are so-called because the frame, hammers, and strings are positioned vertically. Although the vertical stringing of these instruments – with the strings and soundboard placed behind and perpendicular to the keys and the tuning pins placed at the bottom of the instrument – still resulted in a poorer tone quality than that of the contemporaneous fortepiano and grand pianos, the vertical piano was regarded as being structurally superior to the square. By the early twentieth century, the square piano had fallen into relative disuse. Vertical pianos, which were manufactured in large numbers throughout the United States and Western Europe, continued to enjoy numerous improvements and experiments in their design throughout the nineteenth and very early twentieth centuries, which saw the creation of the cabinet vertical between 1805 and 1840, characterized by its extensive height and straight stringing, and the cottage vertical from around 1815 until the early twentieth century, characterized by its shorter height, as well as the oblique vertical in the 1820s, which incorporated diagonal stringing throughout as opposed to the straight or cross (combination of straight and diagonal) stringing seen on the majority of all other vertical pianos of the time, and the spinet vertical from the 1930s, which employed an unusually low hammer position with drop action to maintain a reasonable keyboard height. In fact, for a short period of time towards the end of the nineteenth century, workshops specializing in the production of cheaper, less complex, and smaller pianos became exceedingly active in England in what has been referred to as a “cottage industry”; indeed, this certainly helped promote the prevalence of the piano in home life as was experienced in the early twentieth century, catering to the middle class. What began as an instrument designed exclusively for use within the Medici courts in Florence, Italy had, over the course of less than two centuries, become the ubiquitous domestic instrument. High-end instruments from prominent builders continued production concurrently, seemingly unaffected by the increase in demand for cheaper instruments. It is interesting to note that while the materials required for the sound-producing mechanisms of both vertical and grand pianos were relatively cheap to manufacture or purchase, outer materials, such as hardwood veneers, exotic veneers, and intricate carvings, were also unusually inexpensive at the time. Although nearly every piano of the late nineteenth century, regardless of quality, was produced with the sorts of ornate designs typical of the Victorian era from which they emerged, their outer splendor had disappeared by the early twentieth century to suit a changing aesthetic that favoured simple and clean design. In the twentieth century, pianos have continued to develop into a number of forms, including that of the player piano and the electric piano.Users/PerformersAlthough there is little documented usage of Duoclave pianos in particular, Pleyel et Cie stood among the eminent manufacturers in the nineteenth and early twentieth centuries, with many notable performers favouring their soft touch over the French competitor, Érard. Among the most well known users of Pleyel pianos was the fame Polish-French composer and pianist, Frédéric Chopin. Chopin was born 22 February 1810 in Warsaw, Poland. He relocated at age 21 to Paris, France, where he remained until his passing on 17 October 1849. Along with composers such as Franz Liszt and Hector Berlioz and authors such as George Sand, Chopin was a core member of a group of artists living and working in the French capital and heavily contributed to the cultural and aesthetic landscape of the Romantic era. Apart from a small selection of chamber works, the majority of Chopin’s oeuvre was written for solo piano, with most exhibiting elements of both virtuosity and lachrymose, and with many incorporating folk traditions and forms from his native Poland. His compositions include numerous mazurkas, polonaises, etudes, nocturnes, waltzes, and ballades. To this day, he remains one of the most revered composers for the piano. His first and last public performances in Paris were held at Salle Pleyel. Other composers and performers who favoured Pleyel instruments include the French Impressionists Claude Débussy, Camille Saint-Saëns, and Maurice Ravel, as well as the famed Russian composer Igor Stravinsky.

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