audio tsne files no longer available

[Mike Heavers]

Running the download.sh script in the data folder of ml4a guides does not download anything called Vintage Drum Machines and the link provided in the notebook is 404

Audio T-SNE

[Sayantan Das]

Same issue

[YounKyung Jang]

same issue

[James Hagerman]

Anyone landing here, it's still in the git history: https://github.com/ml4a/ml4a/blob/f83082e46b148e29d129f655d3218bc3cf1dd5c1/notebooks/audio-tsne.ipynb