Based on a patented, though never actually built piece of hardware, the 1959 Hidden Electro Acoustic Piano from Sampleson relied on spectral modeling to create this piano’s sound now that the patents have expired. According to Sampleson, the sound can further be described as CP80-like, though more tuned due to fewer strings. The resulting sound of this virtual instrument is warm, clean, and bright. The expressiveness of the piano action is emulated and gives it a nice and wide range of timbres. From warm lows to metallic shines on higher velocities.