Hi Breanne,
Welcome to the list.
How about :
%%%%%%%%%%%%%
\version "2.18.2"
%% Bracket defs:
startBracket =
-\tweak color #white
-\tweak bound-details
#`((left
(text . ,#{
\markup
\with-dimensions #'(0 . 0) #'(0 . 0)
\with-color #black
\override #'(thickness . 1.5) {
\combine
\draw-line #'(1 . 0)
\draw-line #'(0 . -1.5)
}
#})
(Y . 1.5)
(attach-dir . -3))
(right
(text . ,#{
\markup
\with-dimensions #'(0 . 0) #'(0 . 0)
\with-color #black
\override #'(thickness . 1.5) {
\combine
\draw-line #'(-1 . 0)
\draw-line #'(0 . -1.5)
}
#})
(Y . 1.5)
(attach-dir . 3)))
\startTextSpan
stopBracket = \stopTextSpan
%%% Test:
the-music = \transpose c c' {
\clef G
\time 3/4
\key d\major
\set doubleSlurs = ##t
\tempo\markup\normal-text\concat {
\italic "Solemnly" \hspace #.8
\raise #.5 \smaller\note #"4" #1
\hspace #.5 "=" \hspace #.3 "76-88"
}
\set Score.tempoWholesPerMinute = #(ly:make-moment 76/4)
<d a>2\startBracket <d fis>4
<fis a>2 <d fis>4
<fis a>( <e g>) <d b>
<cis e>2 r4 \stopBracket
<cis e>2 <d fis>4
<e g>2 <d fis>4
}
the-lyrics = \lyricmode {
Je -- sus, once of hum -- ble birth,
Now in glo -- ry
}
\score {
\new Staff <<
\new Voice = "Melody" \the-music
\new Lyrics \lyricsto "Melody" \the-lyrics
>>
\layout {
ragged-right = ##f
}
\midi{}
}
%%%%%