Lydian #2

Not the Lydian mode, and the search results say so

Most people looking for this scale are looking for plain Lydian: the phrase with real demand is «lydian mode», and it means 1 2 3 ♯4 5 6 7 — the major scale with a raised fourth. Lydian ♯2 raises the second as well, and that additional alteration puts it in a different family altogether.

The distinction matters because the two belong to different parents. Lydian is a mode of the major scale and sounds like a brightened major; Lydian ♯2 is a mode of harmonic minor, and the augmented second between its root and second degree makes it sound closer to the exotic end of the catalogue.

If you came here wanting the raised-fourth major sound, the Lydian mode is catalogued separately. This page is about the rarer scale with two raised degrees.

Where the augmented second lands

Harmonic minor contains one three-semitone gap, and each of its modes inherits that gap in a different place. In the parent scale it sits between the sixth and seventh degrees; in Lydian ♯2 it sits at the very bottom, between the root and the second.

That position is what gives the scale its character. A gap in the middle of a scale is a colour; a gap immediately above the tonic is a statement, because every phrase that leaves the root crosses it. The scale announces itself in two notes.

It also makes the scale awkward to use as a key. Melodies built on it tend to sound like they are quoting rather than speaking, which is a fair description of how it is used in practice — as a brief exotic gesture inside music that lives elsewhere.

What it fits, and how little it is used

The chord underneath is a major seventh with a raised fourth and a raised second — a dense sonority that appears occasionally in film scoring and in the more theory-driven end of jazz composition. There is no repertoire written in this scale.

Honesty about that is more useful than manufacturing a use case. This scale exists because rotating harmonic minor produces seven modes and this is the sixth of them; its name is catalogued, its interval set is fixed, and it turns up when a composer wants a specific chord rather than when a player is looking for a sound to improvise on.

For a guitarist the practical route in, if you want it, is the same as with any harmonic minor mode: play the parent scale and let the sixth degree be home. The fingering is one you already know.

Frequently asked questions