Imperial Bösendorfer
The Bösendorfer Model 290 Imperial, or Imperial Bösendorfer (also colloquially known as the 290), is the largest model and flagship piano manufactured by Bösendorfer, at around 290 cm (9 ft 6 in) long, 175 cm (5 ft 9 in) wide, and weighing 552 kg (1,217 lb). It has an eight-octave range from C0 to C8. For 90 years it was the only concert grand piano in the world with 97 keys, until it was joined in 1990 by the instruments of Stuart & Sons of Australia.
Imperial Bösendorfer

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The Bösendorfer Model 290 Imperial, or Imperial Bösendorfer (also colloquially known as the 290), is the largest model and flagship piano manufactured by Bösendorfer, at around 290 cm (9 ft 6 in) long, 175 cm (5 ft 9 in) wide, and weighing 552 kg (1,217 lb). It has an eight-octave range from C0 to C8. For 90 years it was the only concert grand piano in the world with 97 keys, until it was joined in 1990 by the instruments of Stuart & Sons of Australia.
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Extra keys
Extra keys
Music critic Melinda Bargreen has described the Imperial as the ne plus ultra of pianos, while pianist Garrick Ohlsson dubbed it the "Rolls-Royce of pianos".
Bösendorfer built the first Imperial in 1909, following a suggestion by composer Ferruccio Busoni to build a model with an extended range. Busoni sought to extend the range to accommodate his transcription of Johann Sebastian Bach's organ works. In order to emulate the 32 foot registers available on some large organs, he needed the entire octave down to C0. For instance, the final page of Busoni's transcription of Bach's "St. Anne" fugue, BWV 552, contains the notes A♭0 and G0. The Bösendorfer Imperial features 97 keys: a full eight octaves. This is in contrast to their other extended model, the Bösendorfer 225, which has 92 keys (down to F0). The extra keys, which are all at the bass end of the keyboard (that is, to the left), are colored black so that the pianist can tell them apart from the normal keys of an 88-key piano. They were originally covered with a removable panel to prevent a pianist from accidentally playing the extra notes. While the keys are seldom used, the extra bass strings create additional harmonic resonance that contributes to an overall richer sound. Compositions have been written specifically to use the extra keys. Pianist and University of Washington School of Music director Robin McCabe explains the challenge of adjusting to the extra keys: "One's 'southern sight-lines,' so to speak, can be seriously skewed because of the extra footage in the bass. Ending a piece such as Debussy's L'isle joyeuse, for example, with its nose-dive final gesture to the low A of the piano, becomes a bit more problematic when that A is not the lowest note on the piano!" Reportedly, "[the] 290 has proved a bit of a temperamental star, sounding harsh and jarring in the hands of pianists who do not understand how to play it and marvellously refined in the hands of those who do".
Pricing and availability
Pricing and availability
Bösendorfer Imperial Concert Grand pianos, handcrafted in Austria, retail for between US$256,000 and $560,000 in the U.S., depending on finish, design and whether the Disklavier Enspire computer reproducing system is installed. (Bösendorfer's CEUS reproducing system, "Create Emotions with Unique Sound", developed in-house, is more expensive still.) In 1977, the price was reported to be $35,000, $186,000 in 2025 adjusted for inflation. While the concert piano market is dominated by Steinway & Sons, which signs prominent artists to a performance agreement and urges them to refrain from playing any other piano brand, performers preferring the Bösendorfer Imperial will often have that piano shipped with them while on tour.
Notable composers and performers
Notable composers and performers
Tori Amos Wilhelm Backhaus Paul Badura-Skoda Victor Borge Malcolm Frager Keith Jarrett Valentina Lisitsa Garrick Ohlsson Charlemagne Palestine Oscar Peterson Terry Riley Carol Rosenberger András Schiff Wibi Soerjadi Cecil Taylor La Monte Young Frank Zappa

Imperial Bösendorfer at 19th century hall near Torokko Saga station
Hahifuheho
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Bargreen, Melinda. Incredible Instruments: Some find Bösendorfer pianos grand indeed. The Seattle Times. 24 May 2002.
- 2.Model 290 Imperial. Bösendorfer.
- 3.Bösendorfer Imperial Grand Piano. George Fox University.
- 4.Wise, Michael Z. (May 9, 2004). "Piano Versus Piano". The New York Times. Retrieved March 23, 2008.
- 5.Concert Grand 290 Imperial. Boesendorfer.
- 6.Bösendorfer Imperial Grand Piano. University of Wisconsin Eau Claire. 12 November 2014.
- 7.Fine, Larry. The Definitive Piano Buying Guide for Buying New, Used, and Restored Acoustic Pianos and Digital Pianos. Acoustic & Digital Piano Buyer. 2016.
- 8.Stern, Ellen. Best Bets. New York. 10. 23. 68. 6 June 1977. 0028-7369.
- 9.Hickling, Alfred. Charlemagne Palestine – a man who plays the whole building. The Guardian. March 4, 2010.
- 10.Young, La Monte. The Well-Tuned Piano: 81 x 25 6:17:50-11:18:59 PM NYC. 1987.
- 11.Julien's Auctions. Property from the Estate of Frank & Gail Zappa. 4 November 2016.
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