How can one write a duplet consisting of two quarter notes equal to a dotted-quarter note in 6/8 time? Like this:


I tried \tuplet 2/1. but the . is not accepted.

And if I write this:

\tuplet 2/3 {<mi la>4 <mi la>} <re sol>4 <sol si>8 <sol si>8

I get this:

wrong duplet

  • Your first example was quite different. This one has no time signature, so we'd have to guess that it's 6/8. So long as you are working in some multiple of 3/8, a Duplet makes sense. If you are in X/4, use Richard's setup. – Carl Witthoft May 17 '17 at 14:20
  • Ah, yes, my bad, wanted to write 6/8. – Lhooq May 17 '17 at 14:23

The fix here would be \tuplet 2/3 { c8 c }, which tells LilyPond "write two eighth notes in the span of three." This gives:

enter image description here

But I would personally find this confusing for a few reasons, so I might suggest instead something like c8 c c c8~ c16 c~ c8, which gives:

enter image description here

Edit: Now that I see the example, I wonder if there's an error in the original that you're copying. A duplet should be two units played in the duration normally occupied by three units, so the score example you're working with, in my opinion, should be written as \tuplet 2/3 { <e a>8 q } <d g>4 <g b>8:

enter image description here

But if we really want quarter notes there, thankfully LilyPond allows us to alter the actual durations; just "multiply" the note values by the given amount. So now we can use \tuplet 2/3 { <e a>4*1/2 q } <d g>4 <g b>8 to notate quarter notes, but the *1/2 means that they only occupy half that value (that is, eighth notes) in the score:

enter image description here

| improve this answer | |
  • Since my first reaction to the top form is (since this is the first measure) that it's starting on the off-beat of One and is purely eighth-notes, I definitely prefer the second. – Carl Witthoft May 17 '17 at 14:18
  • I updated my question because on the partition I got you can see there are two quarter notes in the duplet. – Lhooq May 17 '17 at 14:19
  • So, what I want is: write two quarter notes in the span of one and a half". – Lhooq May 17 '17 at 14:30
  • @Lhooq Hopefully the edit is more helpful! – Richard May 17 '17 at 14:44
  • I must admit I was kind of confused with these two quarters note but, sir, you rock with your complete answer! – Lhooq May 17 '17 at 14:46

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