The Double Harmonic Lydian scale is an adventurous and exotic musical scale that incorporates intriguing tonal flavors, often associated with Eastern and Middle-Eastern music. It is derived by modifying the Lydian scale, one of the seven traditional modes in Western music, effectively injecting a tantalizing double harmonic flair into its tonal structure. This scale can be built by starting on the note of your choice, then following this step sequence: - Half step - Augmented second (one and a half steps) - Half step - Whole step - Half step - Augmented second - Half step The double harmonic nature comes from the presence of two augmented seconds within the scale, giving it a uniquely dissonant yet alluring quality. It provides an emotional and dramatic edge that's rare in most Western compositions. When exploring this scale on the guitar, take advantage of its expressive character which, when paired with the Lydian's natural sharp fourth, creates a surreal atmosphere that's perfect for improvisation, film scoring, and fusion genres. Guitarists should be mindful of employing bends and slides to accentuate the exotic tension and release inherent in the scale's intervals. Additionally, it poses interesting possibilities for creating motifs and layered harmonies within a versatile range of musical pieces. Practically, it's crucial to pay attention to finger placement due to its distinctive intervals to ensure smooth transitions between the notes. Experiment with diverse phrasings and rhythmic patterns to fully reveal the profound and evocative beauty of Double Harmonic Lydian in your guitar playing.