When shopping for a performance-grade grand piano, the choice often feels like a crossroad between high-tech innovation and old-world tonal tradition.  The Ritmüller GH Series, including the GH160R, the GH170R the GH188R and the GH121R, are in the premium "Performance" line from the world’s largest manufacturer. The Ritmüller GH Series offers a compelling "boutique" alternative to the Kawai GL series