His ingenious and influential solution was a low-cost do-it-yourself harpsichord kit, widely referred to as the Z-Box: a 35-pound box containing a keyboard, strings, plectrums (or pluckers), jacks ...

There are many who play stickily, as if they had glue between their fingers. Their touch is lethargic; they hold notes too long. Others leave the keys too soon, as if they burned. So Carl Philipp ...

The subseries consists of the pioneering kit manuals Hubbard promoted while waiting for finished instrument orders. The earliest manual, 1964, is a general purpose harpsichord manual that is most ...