Website: https://www.trisunsoft.com
Giveaway: https://www.trisunsoft.com/order-km-tp.htm
Download: key-music-3.0-build-011.zip
License Key: TKMN-QRLB-QLSG-LWLY
It is very easy to use, just install and run it, your keyboard will sing while you typing.
You can set the Device, Instrument, Volume and Tone to get a wide variety of music, and all settings will be saved automatically after exited.
Please note that this program needs Windows Media Player (WMP) component to play sounds. By usual, most Windows systems have installed WMP, but if you use Windows 7 N or other Windows systems that have not built-in WMP, you should install it manually first.