The melody of The Eve Of The War by Jeff Wayne runs 123 notes across 22 bars, 8:27 long in Gm at 120 beats per minute. The tab sits almost entirely in the first two frets, one note at a time — no chords to barre and no strumming pattern to keep up with. A piano backing track plays the chords and bass underneath, so the line you are learning sounds like the record even at half speed.
Prefer to strum and sing it instead? The Eve Of The War chords and lyrics.