Meticulously crafted from natural dark walnut by skilled American artisans, the AT-90SL is the epitome of luxury. Its sound is luxurious too: When you hear its footage sound source, hundreds of voices and rhythms, and cathedral-like resonance delivered through one of the most impressive sound systems available, you will realize the true power that this instrument possesses. And it’s ultra comfortable to play, with a convenient sliding music rest, a large color LCD touch screen, a gently illuminated panel, and easy-to-understand user interface.