Watch the Locrian: High Tension online guitar lesson by Robbie Calvo from 30 Modal Progressions You MUST Know

"High Tension" is a Locrian progression in the key of D. The chords are Emi7 - Dma7 - C#mi7(b5) - G5/2, written as II - I - VII - IV in Roman numerals.

Locrian progressions are very tense sounding and don't really have a strong resolution point. I've tried to make these progressions as musical as possible, but understand that they're usually composed to add that tense unresolved sound for movies and TV bed tracks. Improvise over this progression using the C# Locrian mode (D major scale) or even A7 arpeggios.