Google Home - Set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices.
Muzeek (Beta) - Beautiful SaaS technology for the live music industry
Sonos One - A self-contained, Alexa-connected speaker from Sonos
PrimoMusic - An iTunes alternative made to manage iPhone/iPod media files
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
RecordGram - A studio and production marketplace in the palm of your hand