Brian,
Not being a piper I am not sure of nomenclature, yet Lilypond has the command “\grace”.
Your example would be notated
\version "2.19.84"
\relative c'' {
\grace {g'32 f d} g4
}
Mark
From: lilypond-user [mailto:lilypond-user-bounces+carsonmark=address@hidden] On Behalf Of Guo Brian
Sent: Tuesday, February 11, 2020 2:48 AM
To: address@hidden
Subject: [OT] Identification of a bagpipe embellishment?
Hello all,
I am certain that the LilyPond community has a number of bagpipe players, and I hope that I do not bother you with the following problem that I have come across:
I am transcribing a bagpipe piece written in Bb major into “conventional” notation (where the scale is based on A), and come across the following embellishment: 
In conventional notation it would be written as: 
In case Mailman refuses to send the images, the embellishment consists of what appears to be the beginning of a F doubling (written as the grace notes High G and F), then a strike to D, then the main note becomes a High G. Putting aside the possibility of the fingering, the sequence is gfdG, where lowercase letters are grace notes and the uppercase letter is the main note.
However, I am having trouble finding the name of the embellishment. I have tried searching it by the notes, but without luck.
The embellishment in question is from the transcription of an avant-garde piece: The Most Unwanted Music by Dave Soldier. In the score, the transcriber makes a note that “[t]he score cannot reflect accurately all the music, and the performers should also
listen to the CD”, so it is also possible that this embellishment is actually the result of a transcription error.
I am by no means a professional bagpipe player, so any advice would be much appreciated.
Kind regards,
Brian Guo