I am using EWQLSO strings which have specific recorded tremolo effects which sound way better than simply repeating a note very fast. But how do I get Dorico to make the keyswitch instruction using Expression Maps? If I use the Dorico tremolo symbols, it just tries to repeat the note quickly. I can’t see a ‘tremolo’ playing technique that I can add in the Expression Map.
There is a “tremolo” playback technique already defined. If it is not defined in the expression map for an instrument, Dorico generates repeated notes instead.
By default, 3 tremolo lines gives an unmeasured tremolo which triggers the playing technique. 1 or 2 lines give a measured tremolo playing notes that match the notated rhythm. You can change the number of lines for unmeasured tremolos in Playback Options / Timing / Tremolos.
Experiment with the bundled HALion sounds for strings. Look at the playing techniques lane in Play mode and the HALion display to see when the “tremolo” key switch activates.
With the default playback options, 1 and 2 slashes play measured tremolos (i.e. individual notes in the written rhythm) and 3 or more set the “tremolo” playback technique if it is defined, or play notes as a fixed repetition rate (independent of the tempo) if it is not.
You could change it so 1 2 and 3 play measured and 4 or more play unmeasured, if that is what you meant.
Probably in an earlier version, I found that four slashes (and buzz roll) gave me no playback. I therefore thought that if it were not pre-defined one might associate it with a custom technique in one’s VST as posts above seemed to want to do.