Ableton Help, Ableton FAQ, MIDI, VST Plugin. Having trouble using MIDI files with Ableton Live? Do you want to use a MIDI file you downloaded from the internet within Ableton Live? Then read on. For this lesson you will need:
Ableton Live 4.0 (or newer)

VST, Plugin, Free, Mixing, Oscilloscope.A good oscilloscope is useful in many contexts: synthesizer programming, understanding phase cancellation, compression, etc. Lucky for you, there is a fantastic free digital storage oscilloscope from Bram at SmartElectronix. This plug-in can be dropped anywhere in your DAW’s signal path for quick and easy analysis. 
VST, Plugin, Free, Mixing, Frequency, Spectral Analysis. It is often extremely useful to see the frequency spectrum of your individual tracks and your final song. For example, you may want to see if your bass is dipping into the same frequencies as your kick drum. Unless you have perfect audio monitoring equipment and perfect ears, you will need some help to make sure you don’t have overlapping frequencies. There is a free plug-in from Roger Nichols called Inspector that allows you to see the frequencies used by an audio signal. This tool, in combination with a filter or EQ plug-in, allows you to visually sculpt your instrument’s frequencies. In other words,
Finally, free sidechain compression for Mac OSX producers is now available! Get that house music pumping sound using Teragon Audio’s DualComp VST Compressor.
Voxengo Boogex is the best free distortion / guitar amplifer VST plugin for Windows. It offers cabinet modeling, wave shaping, and uses a relatively small amount of system resources. This is one plugin you definitely want in your sonic arsenal.