4 for IV, Part IV: Van Morrison’s “Into the Mystic” and the IV Chord That Isn’t There

On its surface, Van Morrison’s “Into the Mystic” seems like an odd choice to include in an analytic series devoted to the IV chord, not to mention to devote an entire entry towards. The song does have a couple IV chords (two, though the section in which they appear returns later in the song), but it is not really an integral part of the song’s harmony. However, much of the song implies this chord (and, specifically, a plagal progression) without actually articulating it, which presents a use for this chord on a level not discussed yet.   In this inevitable, eponymous conclusion to my “4 for IV” series (Parts I, II, and III can be found at the provided links), I examine Van Morrison’s subconscious use of the plagal progression in “Into the Mystic”.   Here’s the studio recording of the song, followed by the functional harmonic (key of Eb Major) and formal analyses of the music:   A: Eb* (I) |     |     |     | Bb (V) |     | Eb (I) |     | *liberal mix of Ebsus   B: Gm (iii) | Ab (IV) | Eb (I) |     | Gm (iii) | Ab (IV) | Bb (V) |     |   more »