Hi,
Back on this issue. First of all, a little of background, to understand where I come from with this matter. I mostly compose taking from the principles of spectralism. Microtones are very important, because partials approximation to a semitone is no longer satisfactory, as it was at the times of Messiean. Quarter and sixth of tone are necessary, to create the particularly rich sonority typical of this music.
Most composers have been using programs/languages like Max, jMax, PureData, SuperCollider, OpenModus to deal with this. Quarter-tone support in "commercial" apps, that can also be used without wearing a lab's white coat, has never been available. There was something in Sibelius. Until the appearance of Dorico, a scoring program that can be used both for hymns and more sophisticate writing alike. Microtonal accidentals are supported from the start as a standard feature.
Microtonal accidentals are not only needed in the niche type of music I was citing above. A niche that, for something like VSL, is maybe a bit less niche, since the users are very often specialists of classical and contemporary music. Microtones are however also useful for ethnomusicologists, or musicians from cultures different/exceeding the Western tuning system. Or even Western musicians including forlk elements in their music (starting from Bartók, whose violin sonata did include an early form of microtonal accidentals).
Then, I know Haas, the most notable Austrian spectralist, is from around Graz, so I guess Vienna tries to refuse him!
I have done several tests with Dorico these days. Microtonal support with NotePerformer is great. I couldn't test support with apps compatible with VST2's Detune and VST3 Note Expression parameters, like Halion or Pianoteq. What I could see is that VST players are not, alas, compatible with this system.
Steinberg is not interested in using pitch bend instead of native VST controls. If VSL can't implement the requested controls, we will still live in a world where great sound libraries can't fully communicate with great scoring programs. We have all we need, only living in two separate, non-communicant dimensions.
So, I'm here just to voice my dream of being able to write music, and have those odd symbols before the note performed correctly. Spectralism is 50 years old. Bartók/Kodály's ethnomusicological researches are more than a century's old. Parry and Lord are nearly as old. Still, computers can't be used to write down and play their music.
Paolo