. Note that it is a solid block with only a token resemblance to a guitar shape. Spanish guitars were introduced into the
Hawaiian Islands as early as the 1830s. The Hawaiians did not embrace the standard guitar tuning that had been in use for centuries. They re-tuned the guitars to make a chord when all the strings were sounded together, known as an "
open tuning". This was called "slack-key", known in
Hawaiian as "
kī hōʻalu", because certain strings were "slackened" to achieve it. became available,
Joseph Kekuku, on the island of
Oahu, developed and popularized playing an open tuning while seated with the guitar across his knees while pressing a steel bar against the strings. Following Kekuku's lead, other Hawaiians began playing in this new manner, with the guitar laid across the lap, instead of in the traditional way of holding the instrument against the body. In 1916, recordings of indigenous Hawaiian music outsold all other U.S. musical genres. This popularity initiated the manufacture of guitars designed specifically to be played horizontally. Despite incorporating a resonant chamber in their body, these early acoustic versions of the instrument were not loud enough relative to other instruments. However, in the early 1930s a steel guitarist named
George Beauchamp invented the
electric guitar pickup. Electrification not only allowed the lap steel guitar to be heard better, but it also meant that their resonance chambers were no longer essential. The result was that steel guitars could be manufactured in any shape – even in the form of a rectangular block bearing little or no resemblance to the traditional guitar shape. This led to table-like instruments in a metal frame on legs called "
console steels". ==Types of lap steel guitars==