I need an audio processing library/API (in any programming language, preferably Java or Python) that is able to do things to sound waves such as: sum/mix sources together, apply EQ, dynamic EQ where you can change a frequency peak or amplitude setting over time, pitch shift, distortion, and convolution reverb, all programmatically without any need for a user interface.
Someone asked "If there were, why would there be a market for premium commercial DAW software?" Obviously this wouldn't be for the actual music-making composer or sound engineer because it would be unusable (it wouldn't have a GUI). I need it to automatically manipulate sound so I can churn out millions of random not-necessarily-musical sound files, without a GUI.
This is not same as the "OpenCV for audio" question, because I don't need intelligent audio feature extraction; I just need the standard features of DAW such as EQ and convolutional reverb, available as an API call, like soundFile.applyEq(myEq).applyConvReverb(myReverb);