Hal Leonard Publications
Pat Metheny Orchestrion - The Complete Score
Complete transcribed score

Metheny says, “'Orchestrionics' is the term that I am using to describe a method of developing ensemble-oriented music using acoustic and acoustoelectric musical instruments that are mechanically controlled in a variety of ways ... with the pieces on this particular recording leaning toward the compositional side of the spectrum. On top of these layers of acoustic sound, I add my conventional electric guitar playing as an improvised component.” Here are the original scores for five pieces:

Entry Point
Expansion
Orchestrion
Soul Search
Spirit of the Air