EEG Streamer is a graphical user interface (GUI) application designed to record and visualize EEG (Electroencephalography) data using the Muse 2 headset utilizing Brainflow and MNE Tools. The application allows users to stream, record, and analyze EEG data in real-time, with features for playing music during recordings, visualizing raw EEG data, and generating various EEG-related plots.