1. What I understood Russolo's perception of sound to be was basically anything that can be heard, but his view on noise is one that I had never really considered. Perhaps this is just because the term 'noise' has always been something negative; something similar to 'racket' or 'clamor.' Russolo defines 'noise' as more of a natural sound, sounds that come from everywhere around us. He finds a beauty in this type of sound. I think that I hear things in the city and in nature that I enjoy and maybe find beautiful, but I just don't think about it much beyond that. Because I read this passage I imagine that I will be considering the things I hear in the background more often now.
2. Throughout the entire passage Russolo using very descriptive phrases and is heavy with the amount of adjectives that he uses. I found this slightly confusing. If I were to read an entire book written by him I would most likely become annoyed with how wordy it is. The middle part of this letter when he was describing the types of sounds that this futuristic orchestra would make had a more poetic sense to it. With even just the way that he typed the words you could tell he was very in the moment. You can feel the emotion that he puts into each wound(well word representing sound). I love that. Even if I don't like a piece of artwork, if I can feel the passion put into it I won't have anything negative to say.
3. I believe he separates them by the type of sound they make and also by what is used to make them. High pitched noises, loud noises, noises made with one's mouth, noises make by hitting something, soft noises, etc.