Mason hamlin symmetric grand 19403/16/2024 ![]() Read more about string length and inharmonicity here. Even so, the bass strings will still not deliver the timbral quality of a traditional grand piano. ![]() The longer bass strings aren’t therefore needed, and the instrument can be made more compact. The casework of the symmetrical grand restricts the length of the bass strings, and this can lead to inharmonicity (unwanted overtones) when thicker strings are used to compensate for length.Ī common solution is to simply reduce the span of the keyboard, and that is why most symmetrical grands have 73, not 88 notes. That is why a standard grand piano has its customary shape-a straight bass-side, and a curved S-shaped treble-side. To get the best sound from a piano the strings need to be as long as possible with, of course, the bass strings being the longest. They are attractive to look at but the symmetrical grand is to some extent a compromised instrument. They get their name from the two-part “winged” lid which gives the piano a butterfly-like appearance. Most, but not all, butterfly pianos are symmetrical grands. ![]() After 29 bids the piano sold for US$6,500, somewhat exceeding expectations! So what is going on here, and what is a butterfly piano? Photo: Great Gatsby’s Auction Gallery Symmetrical Grand Pianos ![]() It had an estimated value of US$1,000 – US$1,200. A few days ago a nice example of a Wurlitzer Model 235 Butterfly Piano sold at Great Gatsby’s “A Lifetime Collection at Auction” sale. ![]()
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