Here is a Sound-Reactive Fire Pit with a Bluetooth speaker system and flames that dance to your music. It has sound reactive, music & fire, and other modes for you to try. The developers are offering multiple sizes but you also get DIY kits to build your own custom fire pit.
You can connect two fire units to one device. There are safety features such as flame-out detection and auto shut-off. Yet another interesting Kickstarter project.