SSEYO miniMIXA

http://www.sseyo.com/products/miniMIXA/

A powerful easy-to-use music mixer, and much more besides, for mobile devices. Use it to create unique «mastertone» ringtones (high quality audio), MIDI ringtones, podcast backing music, mic recordings and put in high quality FX. If you are someone that likes making music, messing around with music or just wants to have some serious fun – then this is definitely worth checking out (see the V2 Fact Sheet and V2 Product Comparison for more info). There is nothing else out there that can do all it does, and on so many devices!
Free-to-download «SE» Version

The powerful «full save» free-to-download SSEYO miniMIXA SE version lets you get mixing for free. And if you have not got a suitable mobile device, then no worries, there is a version for Windows PC as well!