Some designers copy construction concepts from nature. We at Schimmel have in a manner of speaking copied ourselves and have transferred our grand piano know-how to a smaller format. In the unique Schimmel Trilogy Concept, the well-established and ideal construction concepts for the large grand piano series have been consistently integrated into the smaller model series, where possible in identical construction. This enables pianists to enjoy the benefits of the outstanding touch and tonal characteristics of a large concert grand even when performing on smaller models. Two trilogy groups are available: Trilogy I (K 280 – K 256 – K 230) and Trilogy II (K 213 – K 189 – K 169) – an extended Schimmel product family. The distinguishing characteristics: the large keyboard-action assembly of the longest grand piano is integrated into the smaller model series, therefore providing optimum leverage ratios which allow the pianist the best possible control over his or her performance. This means that pianists performing on a variety of Schimmel grand piano models can always enjoy the pleasures of playing on a large-scale grand piano and have no need to adapt their performance technique according to different models. The dimensions of the soundboard are extraordinarily large in comparison to the length of the instrument: this is due to the extravagant form of our grand pianos in which ideal oscillation zones have space to develop in the soundboard. These zones permit a greater tonal volume and a superior tonal distribution. Through the Triplex Scale the notes in parts of the middle and treble range are produced with the aid of three exactly coordinated areas of a single string, resulting in an increased richness in tone and a longer speaking length of these notes. Schimmel soundboards are curved in three-dimensional form, in a manner reminiscent of a dome structure, producing a so-called crown. This is additionally supported by a membranous tapered structure in the soundboard which produces ideal vibration properties and in turn harmonious and rich tonal colours, extended speaking lengths and excellent voice stability. The tension collector is a connecting element between the solid mountain spruce back frame construction and the stable cast-iron plate which distributes the tension of up to 21 tons in a controlled fashion throughout the instrument. This eliminates the danger of the soundboard being affected by uncontrolled forces which would unintentionally interfere with its vibration processes.