Lydian scale for guitar
The Lydian scale, or mode, is the fourth of the seven musical modes. It is similar to the major scale except for the raised fourth. The Lydian scale is the scale that appears when a major scale is played with the fourth note (fourth scale-degree) as the root. Thus, a C major scale played from "F" is an F Lydian scale. This is why the term "mode" is more appropriate than "scale".
The F Lydian mode is the same as a C major. So what's the difference? There is no difference; it's the chords that create the magic. Playing an F Lydian scale over a C major chord will sound exactly like playing a C major scale (because they are identical). However, playing an F Lydian scale over an F major chord will sound "Lydian".
Intervals: 1 - 1 - 1 - 0.5 - 1 - 1 - 0.5
Chord fit: maj7, maj7#11