Trill fonts (Whole step trill, and Half-step trill, ligatures, and turns?)

Dear All
As the number of film/game/TV cues written in concert C key has increased, many scoring composers and orchestrators have started to use trill notation which specifies the interval (a whole step or a half step) rather than using sharp/natural/flat or with a small destination note. I had found this whole-step and half-step trill notation to be very useful, and I would like the community to think this issue. 

The main idea is to use "tr" with "W" "H" or "1/2".  "W" is for whole-note trill, and "H" or "1/2" are for half-step trill. 

I have personally use "W" and "1/2," and put those above the "tr" since that use less horizontal space. 
However, I have seen "W" "H" or "1/2" placed after "tr." 

So, my questions are
1) Whether this issue to be considered or not.2) If yes, whether "W" "H" or "1/2" are best way for specifying trill intervals for international music community in mind. 
3) Where those additional characters to be placed? Above "tr", next to "tr", or other?4) Whether these additional characters to be used for "turn notation" for recommended ligatures. Please refer to recommended ligatures at https://w3c.github.io/smufl/gitbook/tables/common-ornaments.html

Thank you for your consideration, and here is examples!



 Sincerely Yours

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Kentaro Sato (Ken-P)
Composer & Conductor
Wiseman Project LLC/GK (President & CEO)
http://www.wisemanproject.com
kentaro.sato@yahoo.com
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Received on Thursday, 28 September 2017 15:04:11 UTC