projectM is the most advanced music visualizer available on the Android Market. It has the smoothest graphics, the most effects, and is the most responsive to music.  It can be used as a Live Wallpaper, in Daydream, or as a standalone app.  

projectM will visualize any sound playing on your phone. If there is no audio playing, projectM will visualize your microphone input!

projectM is essentially a rewrite of MilkDrop with modern technologies.  It is compatible with MilkDrop (.milk) presets.

Features:

- Chromecast support
- Hundreds of Visual Effects
- Multi-Touch Interactive Visuals & Configurable Gestures
- Music Player Controls
- Track Title & Album Art
- Visual Effect Browser & Search
- Auto-detects sound from Microphone and Music Players
- Live Wallpaper & Daydream Modes
- Immersive Mode for KitKat devices
- Configurable graphics quality
- Low battery usage (low CPU usage)

The Free version of projectM is ad supported.  You can upgrade projectM in-app to remove the ads, get 250 new visual effects, and enable the Live Wallpaper and Daydream Modes.