Re: tremolo: 3/4 time, one dotted-half note chord, double-slash tremolo question

[Jean Abou Samra]

Le 20/12/2022 à 02:41, Kenneth Wolcott a écrit :
>    I'm still do not understand the math (I'd like to generate a
> formula!) for tremolos.


I also remained confused by this for a long time till I understood
that the rules are pretty simple. The thing to keep in mind is that
\repeat tremolo and <note>:<duration> don't work the same.
The rules are:

- The appearance of the notes in a tremolo determines the
  total duration. (Even if there are two notes, they count
  for this duration once.)

- The beaming of the notes determines the duration of the
  notes in the fully developed form where you replace the
  tremolo notation with actual repeated notes, like
  \unfoldRepeats does.

- The number passed to \repeat tremolo is the number of
  times the pattern is repeated.

- In the syntax <note><duration>:<tremolo duration>, the
  <duration> is the total tremolo duration, and
  <tremolo duration> is the duration of one note in
  the developed form.


So your tremolo can be written as

\relative d' {
    \time 3/4
    d2.:16
}

as William suggested, or

\relative d' {
    \time 3/4
    \repeat tremolo 12 d16
}


since "duration of dotted half note / duration of sixteenth note = 12".

Best,
Jean

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