Just in case somebody is interested - we have released a new JUCE-based product (currently Windows-only), named Chaotic Music Maker. Although this is a DAW, it’s concentrated on composing features first, what is not very much developed in modern DAWs. Almost the whole infrastructure of the program relies on JUCE and its power, thanks to Jules for such a comprehensive library. Life became much easier when we moved to JUCE (it wasn’t initially JUCE-based).
More info about the app can be found on our website: http://chaoticdaw.com.