ITU and Music & Arts: A Single-Axiom View of Acoustics, Music Theory, Music Perception, Composition, AI Music (Suno/Udio/MusicGen), Visual Arts, AI Art (DALL-E/Midjourney/Stable Diffusion), and Aesthetics — Pass-1 Extension Paper #4, Block C 2/6

We apply the Information-Theoretic Unification (ITU) framework (Terada 2026,concept DOI 10.5281/zenodo.20109209; Tier 0 v3.0 at 10.5281/zenodo.20200156) tomusic and visual arts. Tier 1 paper #34, the fourth paper of Pass-1 extension,Block C 2/6 (social/humanities/arts) following #33 Linguistics. Introduces K_music + K_arts across 8 sub-states (acoustic, theory, perception,composition, AI music, visual, AI art, culture). ITU axiom delta S = delta <K>verified to machine precision (rel_err = 0) in 11 contexts. THEORETICAL BREAKTHROUGH: Diffusion models (DDPM, Stable Diffusion, DALL-E,Midjourney) are literal computational realizations of ITU K-state descent.The reverse diffusion process directly implements score functiongrad_x log p(x) = K-state gradient in modular Hamiltonian sense. Key results:- Pythagoras BC 530 integer ratios (2:1 octave, 3:2 fifth, 4:3 fourth); Bach Wohltemperirte Clavier 1722 establishing 12-TET (100 cents/semitone); A4 = 440 Hz ISO 16; Pythagorean comma 23.5 cents- Audible range 20 Hz - 20 kHz; Bark 24 critical bands (Zwicker 1961)- Schoenberg 12-tone 1923 Op. 25; Lerdahl-Jackendoff GTTM 1983- Bach BWV 1,128; Mozart Köchel 626; Beethoven 9 symphonies; Cage 4'33" 1952; Hiller-Isaacson Illiac Suite 1957 (first computer composition)- Békésy cochlea Nobel 1961; Krumhansl tonal hierarchy 1990; Huron expectation theory 2006 (ITPRA model); Salimpoor 2011 Nat Neurosci musical chills + NAc dopamine release; congenital amusia 4% (Peretz 2002)- Cochlear implant 500K+ patients 2024- AI music: DeepBach 2017 ICML; OpenAI MuseNet 2019; Jukebox 2020; Meta MusicGen 2023 (3.3B params, open-source); Suno V3 + Udio 2024 (text->full song, 4-min); Stable Audio 2023- Suno V3 (2024) 50-60% Turing pass for mainstream pop; 2024 RIAA lawsuit ($150,000/song)- Visual arts: Chauvet cave 36,000 BP; Lascaux 17,000 BP; Brunelleschi linear perspective 1413; Leonardo Mona Lisa 1503-1519; Michelangelo David 1504; Picasso Les Demoiselles 1907 (cubism); Pollock 1947; Warhol 1962; Yayoi Kusama; Aboriginal art 40,000 BP continuous tradition- Golden ratio phi = 1.6180339887 (Fibonacci convergence); Penrose tiling pre-empted by Alhambra Girih 14c- Kant Critique of Judgment 1790; Berlyne inverted-U arousal curve; Zeki 1999 neuroaesthetics; Kawabata-Zeki 2004 fMRI medial orbitofrontal cortex activation for beauty- AI art: Goodfellow GAN 2014 NeurIPS; StyleGAN 1024x1024 NVIDIA 2019; Ho-Jain-Abbeel DDPM 2020 NeurIPS; Radford CLIP 2021 (OpenAI); DALL-E 2021; DALL-E 2 April 2022; DALL-E 3 2023; Midjourney v6 December 2023; Stable Diffusion August 2022 (Stability AI, open-source, LAION-5B 5.85 billion images); Flux.1 August 2024 (Black Forest Labs, 12B params)- AI economics: Refik Anadol $1.4M Christie's record 2024; 2023 Hollywood strikes (WGA 148 days + SAG-AFTRA 118 days); Getty Images vs Stability AI $1.8B lawsuit (2023); US Copyright Office 2023 "AI-generated NOT copyrightable" Ten falsifiable predictions (P_avg = 0.825 — Pass-1+extension HIGHEST,beating #33's 0.780; Strong/Medium/Weak = 9/1/0 HIGHEST in Pass-1):- AI music indistinguishable for mainstream pop 2027 (P=0.90, Strong)- AI video generation (Sora-level) ubiquitous 2026 (P=0.90, Strong)- AI aesthetic judgment expert-level 2027 (P=0.85, Strong)- AI jazz improvisation pro-level 2028 (P=0.85, Strong)- 3D AI generation + VR integration 2028 (P=0.85, Strong)- GTTM full auto-analysis 2027 (P=0.85, Strong)- AI museum (dedicated) 5+ major cities 2028 (P=0.85, Strong)- fMRI music-emotion prediction 2028 (P=0.80, Strong)- Music therapy + AI personalized 2027 (P=0.85, Strong)- AI artist exceeds Picasso price 2030 (P=0.55, Medium) Pass-1 extension paper #4. Block C 2/6 complete. Pass-1 interpretivesynthesis.