Love the spirit of this work, but nobody is an authority on what a melody is. How many different tuning systems were used? Why 8 notes? Why not 0..n notes? [0]

Love the spirit of this work, but nobody is an authority on what a melody is. How many different tuning systems were used? Why 8 notes? Why not 0..n notes? [0] Is a given melody, realized at 10ms per beat a melody? How about a 17-month pause before the first note? [1] Absurd? Sure. But who decides where the boundaries are? Lest one think that there is only an appeal to extremes here, check out Polansky's beautiful Lonesome Road, and put boundaries around melodies [2]. [0] https://www.amazon.com/Larry-Polansky-Worlds-Longest-Melody/dp/B003P5AJIU https://www.amazon.com/Larry-Polansky-Worlds-Longest-Melody/... [1] https://universes.art/en/specials/john-cage-organ-project-halberstadt https://universes.art/en/specials/john-cage-organ-project-ha... [2] https://www.youtube.com/watch?v=0aIifUv1Tmk https://www.youtube.com/watch?v=0aIifUv1Tmk