pavelkomarov/exportify — reverse-engineered prompt

Build me a simple web app like Exportify where I can connect my Spotify account, see my playlists, pick one or more, and download the playlist data as CSV files for safekeeping or analysis.

The CSV should include useful song details like track name, artist, album, release date, duration, popularity, explicit flag, who added it, when it was added, genres, label, and Spotify audio traits like danceability, energy, loudness, acousticness, valence, tempo, key, mode, and time signature. Keep the page lightweight and easy to use, with a clear button to log in, load playlists, and export.

Also include a notebook or analysis script that can read one of the exported CSV files and make charts for common artists, genres, release dates, popularity, audio trait distributions, keys, time signatures, and a simple similarity style plot of songs. Use the Spotify API properly, and look up current docs online if needed.