It is true that in absolute number of users linux audio is relatively small compared to win and osx. But the linux people are in general very tech-savvy, enthusiastic and know of the importance of feedback, especially in open source projects. You say "GPL" and the Linux people will come.

@Christoph-Hart
No, we haven't met. I just googled your name (found your page from ~2013) to see if you are German, because your name sounds like you are. I think it is important to connect and network, especially when it comes to open source audio (linux or not). I am organizing an "Open Source Audio Meeting Cologne" every month http://cologne.linuxaudio.org and it would be fantastic to have you there as a talking guest one day. In our January meeting I will present to them HISE, or rather what I have learned until then.

Greetings,

I just read about HISE in the LinuxMusicians Forum and decided to join. In fact much more than that. For some years now me and a few other people worked on an open source sampler (based on sfz but more) ourselves but progression was slow because there were more pressing audio development software issues.
I did not try HISE out yet but the fact that it exists and its license is GPLv3 pushes me in the direction to give up my own project, which would be a really good development so I can focus more on my sequencer.

I am exited that there finally seems to be a serious sampler project that works on Linux. The Linux Audio stack sadly doesn't have this yet.

Looking forward to it,
Nils, Cologne (Germany)

P.S.
Cristoph, are you the film composer from Berlin?