Sorry, I misunderstood! Oh yeah, JUCE and Csound are worlds apart! You’re right there. Csound makes it really simple to prototype synths and effect. Cabbage helps me realise those ideas quickly. Writing stuff in C++ is a completely different ball game, although the end results are usually about 3 times faster than Csound code. You have to write absolutely everything from scratch1. It’s quite slow, unless you have a team of developers. But C++ is the industry standard language for audio apps, and JUCE is used by a lot of top companies. \Needless to say, knowledge of C++ and JUCE looks good on the resume!
1 I guess libraries like JUCE mean you don’t have to write everything from scratch, but there is still a huge amount of low level code to write.