The Theremin design system descends from the 1929 RCA model: a polished dark mahogany cabinet on four gramophone-style legs, from which nickel-plated brass antennas rise to read a player's hands through an invisible electric field. It is the first electronic instrument — warm wood and metal hardware crossed with the cyan signature of an etheric wave.
The mass is dark wood and brass; cyan is the field, never the surface. Period geometric sans type and concentric ripple rings complete the radio-era voice.
特雷门琴设计系统取自 1929 年的 RCA 量产型号：一只架在四条留声机式琴腿上的深色抛光 桃花心木琴箱，箱体上方竖起镀镍黄铜天线，通过看不见的电场感知演奏者的双手。这是人类 第一件电子乐器——温润的木质与金属硬件，叠加上一缕以太波般的青色信号。
画面的主体永远是深木与黄铜，青色只是电场的签名，而非铺满的表面。配合 1920 年代的 几何无衬线字体与同心涟漪环纹，整套系统散发出无线电时代的器物气息。