Graphical view of device LEDs makes creating custom patterns easy.No official/manufacturer software required.Can operate standalone or in a client/headless server configuration.Connect multiple instances of OpenRGB to synchronize lighting across multiple PCs.Control lighting from third party software using the OpenRGB SDK.Set colors and select effect modes for a wide variety of RGB hardware.You can see a list of applications supporting the OpenRGB SDK here. For example, there's a Keyboard Visualizer application created by the same developer that you can use to turn your OpenRGB-supported RGB setup into a light show for your music. There's also support for using third-party software to control the lighting, thanks to the OpenRGB SDK. You can use OpenRGB either by taking advantage of its Qt5 GUI, or from the command line. It doesn't support every manufacturer out there though, so for a complete list of compatible devices, see this list.

The application can be used to control the RGB lighting in keyboards, mice, mousemats, motherboards, RAM modules, graphics cards, LED strips, fan controllers, smart LED light bulbs, fans, coolers, and more, from brands / manufacturers like ASUS, ASRock, Corsair, G.Skill, Gigabyte, HyperX, MSI, Razer, ThermalTake, and more. It's available for Linux and Microsoft Windows. OpenRGB is a free and open source application to control RGB lighting for a multitude of devices, independent of the manufacturer.

Linux fan control app