I don't think they are trying to market Tracktion to the "pro audio world". (not even if they are saying they do)How do you expect the pro audio world to take Tracktion seriously if you can't even take it seriously?
90% of the income is from prosumers like most of us.
Disclaimer
The 90% is not an actual statistic figure.
It is a guess based on my feelings.
All trolls that feel the urge to jump up every time they see a "%" sign,
hold your horses and read the disclaimer.

