There are different accepted ways to present trill intervals on notation staves, including accidental symbols and the Hollywood convention of showing “H.T.” for a half-step (semitone) and “W.T.” for a whole step (tone).
In Dorico Pro, trill intervals can appear in the following ways on notation staves:
- Accidental
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Indicates the trill interval using accidentals positioned above, below, or beside the tr mark. This is the default trill interval appearance in Dorico Pro for major or minor second trills.
- Hollywood-style
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Indicates the trill interval using text.
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H.T. for half-step/minor second trills
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W.T. for whole step/major second trills
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- Auxiliary note
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Indicates the trill interval using a small, parenthesized, stemless notehead shown in the staff immediately to the right of the first note to which the trill applies, and at the correct staff position for the trilled-to pitch.
Auxiliary notes are used for all trill intervals that are not a major or minor second, but are automatically hidden for unison trills if the notehead design of the auxiliary note has not been overridden.
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On tablature, the trilled-to pitch always appears as a parenthesized fret number.
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You can find options for the default appearance, position, and restatement of trill intervals on the Ornaments page in Engraving Options.