Archived request from the wiki:

Harpejji

• Family: Strings
• Description: "The harpejji is an electric stringed musical instrument developed in 2007 by Tim Meeks, founder of Marcodi Musical Products, and is a descendant of the StarrBoard." - Harpejji's Wikipedia entry.
• Appears on:
  1. Nocturnal (Track 6, played by Sky)