Adorama offers Yamaha DGX670 88-Key Portable Grand Piano for $669 (reg. $849.99) free shipping.

Product Description:

• CFX Stereo Sampling faithfully reproduces the sound of Yamaha's flagship CFX Full Concert Grand
• GHS weighted action is heavier in the low keys and lighter in the high keys, just like an acoustic piano. The special matte black key tops are designed to absorb moisture and remain tactile after extended use without becoming slippery
• Adaptive Style automatically shifts between the Main Style Variations by changing your velocity and number of notes played
• Unison and Accent function adds a doubled voice to your melody line and musical "hits" when you accent your notes
• Smart Chord lets you play great-sounding chords from simple Pop triads to complex jazz 7th chords with just a few fingers