Watch the Have A Triad Slides: 1 online guitar lesson by Ray Nijenhuis from 50 Western Swing Licks You MUST Know

Many of the western swing lapsteelers used the C6 tuning which consists of a C major triad on the bottom three strings and an A minor chord on top. As a result we can easily emulate the sound of the lapsteel on the guitar in standard tuning. By sliding a triad back and forth, a half step down and back up again that is.