An electronic keyboard that includes a plurality of keys including a first
key. The keyboard further includes a key support supporting the first key
for movement between a rest position and a depressed position. The
keyboard also includes a first key return spring configured to apply a
return force to the first key to bias the first key toward the rest
position. In the keyboard, the first key return spring is configured such
that the return force has a substantially constant magnitude throughout
the movement of the first key between the rest position and the depressed
position.