(import v2.9) New \nolyrics macro puts chords on the baseline instead of raised, to better typeset instrumental solos and intros.

songs.sty

@@ -2374,13 +2374,19 @@
     \SB@skip\lastskip%
     \unskip\penalty200\hskip\SB@skip%
   \fi%
-  \ifnum\SB@numhyps>0 %
+  \ifnum\SB@numhyps>\z@%
     \ifnum\SB@numhyps>\@ne\relax%
       \SB@brokenwordfalse%
     \else%
       \SB@brokenwordtrue%
     \fi%
   \fi%
+  \SB@testfalse%
+  \ifnolyrics\ifdim\wd\SB@lyricbox=\z@\SB@testtrue\fi\fi%
+  \ifSB@test%
+    \unhbox\SB@chordbox%
+    \gdef\SB@temp{\expandafter\SB@clearlig\SB@ligfull}%
+  \else%
     \vbox{\baselineskip\f@size\p@\kern2\p@%
       \ifSB@brokenword%
         \global\setbox\SB@lyricbox\hbox{%
@@ -2414,6 +2420,7 @@
     \else%
       \nobreak\spacefactor\SB@cnt%
     \fi%
+  \fi%
   \SB@temp%
 }
 \newcommand\shrp{\raise3\p@\hbox{\small\#}\kern-\p@}
@@ -3355,12 +3362,15 @@
 \newif\ifpartiallist
 \newif\ifrepchorus
 \newif\iftranscapos
+\newif\ifnolyrics
 \newif\ifrawtext
 \newif\ifpdfindex\pdfindextrue
 \newif\ifsongindexes\songindexestrue
 \newif\ifSB@colorboxes\SB@colorboxestrue
 \newif\ifSB@genindexes\SB@genindexestrue
 \newif\ifSB@omitscrip
+\newcommand\nolyrics{}
+\let\nolyrics\nolyricstrue
 \SB@chordson
 \ProcessOptions\relax
 \ifSB@pdf\else\pdfindexfalse\fi
@@ -3446,6 +3456,7 @@
   \def\rep#1{(x#1)}
   \def\echo#1{(#1)}
   \def\mbar#1#2{}
+  \def\nolyrics{}
 \fi
 \endinput
 %%