I am the creator of KangaSound/Kangas Sound Editor, and I have read your comments with interest.
I have a few comments of my own. Firstly, the videos aren't the only way to learn how to use Kangas Sound Editor: there are online tutorial pages at: http://www.kangasoun...l/tutorial.html
The online tutorial pages are also more up to date than the videos. For example, there is now an internal audio player called WavePlayer that comes bundled with the software, and I probably would have used that if it had been there at the time the video tutorial was made (having said that, I do find the Real Player sheep visualisation quite amusing )
Secondly, I don't dispute that there are many other ways of creating sounds and music from scratch, as one of the posters here mentioned when talking about plugins that can create harmonics directly using the mouse. Also, I'm quite sure Kangas Sound Editor isn't "modular", as another poster mentioned. However, I think Kangasound/Kangas Sound Editor is an alternative solution for synthesizing music and sound-effects from scratch, especially if you're interested in Just Intonation (the software uses frequency ratios for pitch control).
Thirdly, I think you guys have realised there is room for improvement in both the Kangas Sound Editor software and the supporting KangaSound website. I actually agree, and have created a crowdfunding project (https://www.kickstar...synthesis-track) that would deliver improvements in both. Of course, I may well not get the funds, in which case I'll probably have to put the whole thing on the back-burner for the time being.