The real eye opener for me though was the Lydian mode. The solo on "Inca Roads" uses these notes, the C Lydian mode. Solos from "Inca Roads" found their way onto Shut Up and Play Yer Guitar, Shut Up and Play Yer Guitar Some More, and Return of the Son of Shut Up and Play Yer Guitar as the title tracks. These solos are really different from anything anybody else plays, and I feel like the hardcore Lydian thing is like a Zappa trademark.
Some solos that Zappa plays with one sharp are:
- Soup and Old Clothes, in D Dorian
- Ship Ahoy, in D Dorian
- Winos Do Not March, in D Dorian
- Pinocchio's Furniture, in G Mixolydian
- Chunga's Revenge, in D Dorian