One part harmonies? Hmmm? That's about as impossible to figure out as some of Eddies more intricate guitar parts.
How can their be any harmony without at least two parts? See 3d below.
har·mo·ny (härm-n)
n. pl. har·mo·nies
1. Agreement in feeling or opinion; accord: live in harmony.
2. A pleasing combination of elements in a whole: color harmony; the order and harmony of the universe. See Synonyms at proportion.
3. Music
a. The study of the structure, progression, and relation of chords.
b. Simultaneous combination of notes in a chord.
c. The structure of a work or passage as considered from the point of view of its chordal characteristics and relationships.
d. A combination of sounds considered pleasing to the ear.
“We can't solve problems by using the same kind of thinking we used when we created them.” - Albert Einstein
"You do not really understand something unless you can explain it to your grandmother" - Albert Einstein