In addition to what has been mentioned so far, I especially appreciate
Werner's passion for making MusiXTeX & friends as powerful as possible
by - let's say - moderating the flow of improvement ideas. He always had
everything in mind that has been done or tried or asked for so far, he
appreciated every idea that could solve a newly emerged problem or
improve some existing feature, he stayed in touch with people who were
delivering solutions, urging them to share their results and knowledge
with all MusiXTeXers, and made a continuous effort to include as much of
the improvement potential he'd collected as possible in the MusiXTeX
(PMX, M-Tx, ...) standard.
Although AFAIK Werner rarely acted as the author of any involved
component, his contribution as the "motor of invention" cannot be
esteemed highly enough. With regard to this, I'd call him the heart of
the MusiXTeX movement and community. Let us honour him by continuing his
valuable work in a joint effort!
Rainer
