Poul Henningsen's Piano Lamp and a Light Written for Music
A musician reading at the piano works in an awkward light. The score stands upright, almost vertical, a little above the eyes, while the hands move across the keys below it. A ceiling lamp throws the shadow of the player onto the page, and a lamp placed beside the instrument tends to shine into the face. It is a small problem, and one that players have long learned to live with. Poul Henningsen, who spent his working life arguing that light should be designed rather than merely supplied, did not accept it.
Henningsen, born in 1894 and trained as an architect, was never only a designer. He wrote criticism and edited the polemical periodical Kritisk Revy between 1926 and 1928. He wrote revues and song lyrics, and two of his songs are now part of the Danish Culture Canon. Louis Poulsen, the Copenhagen company he worked with for the rest of his life, describes him as a keen composer. Music, in other words, was not a subject he approached from the outside.
His reputation in light rests on a principle he first showed in Paris. At the International Exhibition of Modern Decorative and Industrial Arts in 1925, his lamp won a gold medal, and in the following years he refined it into the three shade system that still carries his initials. The idea is simple to describe and difficult to execute. Each shade is shaped and placed so that the bulb cannot be seen from normal viewing angles, while the light is reflected and spread across the room. The result is illumination without glare, which Henningsen regarded as a matter of comfort as much as of beauty. "Once you have experienced good lighting, life is filled with new values," is how Louis Poulsen quotes him today.
In 1930, the Danish piano maker Andreas Christensen commissioned him to design an instrument. The PH Grand Piano broke with the black lacquered box that had defined the grand piano until then. It had a transparent glass lid, a leather rim and legs of steel, so that the mechanism and strings could be seen from above. Only a few were built. One stood in the music room that Alvar Aalto created at Villa Mairea in Finland, and examples are held today by the Metropolitan Museum of Art in New York and Designmuseum Danmark in Copenhagen. Henningsen went on to design a pianette in 1935 and further models later in the decade.
The piano lamp belongs to the same moment. Henningsen designed it in 1931, for the instrument rather than for the room. A long stem rises from a small round base, curves up and over, and carries the shades out in front of the lamp so that they hang above the music stand. At the back, a globe acts as a counterweight and keeps the whole construction in balance. Early versions were made in browned brass with amber glass and details in Bakelite, and over the following decades the lamp appeared in other materials, among them chrome. It was never one of the widely produced PH designs, and originals have since become sought after at auction.
From 1 October, Louis Poulsen brings the design back as its limited edition for 2026. The PH 1/1 Piano Table Lamp pairs a stem, base and top plate in aged brass with PH 1/1 shades in glass blown by mouth, tinted in a colour the company calls Dusty Terracotta. The glass is glossy on the outside and sandblasted on the inside, which softens the light before it leaves the shade. Henningsen's initials are engraved in gold near the base. The edition is available only from October to December.
The proportions have been adjusted slightly. A swivel joint lets the lamp tilt 45 degrees backwards and 25 degrees forwards, a narrower range than before, which Louis Poulsen explains as a way of making the lamp suit a desk, a bedside table or a windowsill as readily as a piano. It is a modest change, yet it says something about how the object has travelled. The piano is no longer the fixed centre of most living rooms, but the need it answered, a precise light falling on a page from above, has not gone away.
Seen next to the pendants that made his name, such as the PH 5, or the smaller PH 2/1 Table Lamp, the piano lamp is the least symmetrical object in the family. The shades follow the same logic, but the stem behaves almost like a line of handwriting, a single curve that loops back on itself before it ends in a small sphere. It is tempting to read that line as musical. More useful, perhaps, is to see it as a drawing of a task: reach forward, stay out of the way, keep your balance.
Henningsen's lifelong collaboration with Louis Poulsen began in the 1920s, when electric light was still new in Copenhagen homes. An earlier piece in this journal looked at the wider history of the company and its idea of human light. The piano lamp is a small chapter in that story, but a telling one. It shows a designer who wrote music himself turning his attention to the exact place where the eye meets the score, and deciding that it deserved a lamp of its own.
Images: Courtesy of Louis Poulsen
