Statistics/ML EP21: From Markov to Diffusion — Sixty Years of AI Composition EP22: How AI Writes Music — EnCodec and RVQ EP23: Can AI Understand Music? Latent Space and Information Bottleneck EP25: Why Music Gives You Goosebumps — Prediction Error and Frisson EP41: The Mathematics of Source Separation — NMF to Demucs EP42: Chord Recognition — From Chroma Vectors to Viterbi Decoding