People are happy to play our keyboard

FAQ

Q: I'm looking at the picture, it looks like a regular keyboard. What's the big deal?

A: It IS a regular keyboard. The relative position of the keys to each other has been adjusted to produce consistant spacing because nearly all pianos have different distances between keys.
It's only about 3mm, but that is a big difference when you are trying to be able to sightread, rather than watching your hands.
And the black keys are a little less angled, that's all.

Because intervallic distances are more predictable, the C# (Db) and D# (Eb) keys are technically more accessible in all hand positions, irrespective of individual hand anatomy or finger patterns.
--- Ralph Alberstrom

It seems there is a manufacturing defect built into piano keyboards.
Believe it or not, the intervals on the standard piano are NOT equal!
Lay a finger between C# and D# notes, now lay your finger between F# and G# - you can feel the difference between the two pairs.
It's only about 3mm, but that is a big difference when you are trying to sightread without watching your hands.
Try your favorite piano figure in different keys - for instance, the intro to "Cheers" - its much harder to reach in A on most pianos compared to original key of Bb.
--- Reseda Mickey