Disyer has taken the liberty to try his own hand at compiling Spotify, as well as the palettes using Pandora Palettizer.
His textures.boo file, boo.txt dump and JPG+PNG palettized textures is provided. (built_palettes)
Those textures were built with the following settings:
python -m palettizer.Main --texture-dir C:\Data\Spotify --max-size 2048 --jpg --png --resize-threshold 1.2 --resize-strategy round