Windows comes with a MIDI synthesizer, the Microsoft GS Wavetable Synth. This synthesizer allows the playback of MIDI files and will play any MIDI events streamed to it in real-time (albeit with horrible lag, which will be addressed later).
Ammonia is a colorless highly irritating gas with a sharp suffocating odor. It dissolves easily in water to form ammonium hydroxide solution which can cause irritation and burns. Ammonia gas is easily compressed and forms a clear, colorless liquid under pressure.
Ammonia is a waste product naturally produced in the body. It primarily comes from the digestion of protein by bacteria in the intestines. If not processed by the liver and cleared from the body appropriately, excess ammonia can accumulate in the blood and pass from the blood into the brain, where it is toxic.