In this style the guitar is often tuned to an open chord, such as open D or open G, allowing the player to change chords simply by moving the slide with one hand, without fretting any strings with the other. This method is the easiest way of playing chords in slide guitar, and is most common; but many experienced guitarists use other tunings as well.
Some specialised makes of guitar are commonly used to play slide. These include resophonic or resonator guitars, commonly also known as dobros after the Dopyera brothers, whose company first made them. These guitars are made with steel bodies. Some have a square neck rather than the more normal curved neck and are designed to be played across the knee.
Slide guitar is commonly used in several different types of music. These would include blues, country and Hawaiian music. However, Pink Floyd used a slide guitar to create intresting sounds. from the eerie hums on Dark Side of the Moon, to the heavy bass on Meddle.