Spotify - Map shows when two people play same song at same time
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
ioBroker - flexible and modular application for the IoT and Smarthome
SoundCloud - Enjoy music & follow favourite artists
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation