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The escapement mechanism is what allows for the hammer to immediately fall away from the string, even if the key stays depressed, so the string can continue to vibrate. When a key is played on an acoustic piano, a felt-covered hammer strikes the string to cause it to vibrate and produce sound. This is Roland’s emulation of the escapement mechanism in a grand piano. Kinnon liked the control she had over the chord voicing, but didn’t like the slight vibration she felt when she pressed the key into the keybed. Davis found it so comfortable that she said she would play on it every day. The action on the RP501R has a somewhat firm feel that is satisfying and easy to play. They’re also generally more aesthetically pleasing.
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When the stand is designed for the keyboard console and the two bolt together, there is no question it’s stable. Separate stands, while convenient if mobility is necessary, can be wobbly.
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But if the piano sound doesn’t sound like a piano, it won’t be an immersive playing experience. Having additional sounds-such as electric piano, strings, or brass-is an added bonus.