Removing the line indentation from verses and choruses in a song

Question

Friends, consider the following code using the songs package:

\documentclass[a4paper]{book}

\usepackage[lyric]{songs}
\usepackage{lipsum}

\renewcommand{\chorusfont}{\bfseries}

\newindex{titleidx}{cbtitle}

\begin{document}

\showindex{My index}{titleidx}

\begin{songs}{titleidx}

\beginsong{My cool song}[
  by={John Doe}]

\beginchorus
\lipsum[4]
\endchorus

\beginverse
\lipsum[4]
\endverse

\endsong

\end{songs}

\end{document}

I'm stuck with this line identation from both choruses and verses:

I'd like to make the subsequent lines aligned with the first line of the group. I tried to alter the \versenumwidth lenght, but it defines the horizontal space reserved for verse numbers to the left. Besides, there is the chorus indentation as well, which I couldn't find anything meaningful.

Any ideas?

Answer 1

The lengths involved are \leftskip and \parindent which are used by the command \justifyleft which, in is turn, is used by \versejustify and \chorusjustify. One possible solution would be then to redefine \justifyleft, but perhaps the original definition would be needed somewhere else, so I opted for defining a new command (which I called \myjustify) to be used by \versejustify and \chorusjustify producing the desired result:

\documentclass[a4paper]{book}
\usepackage[lyric]{songs}
\usepackage{lipsum}

\renewcommand{\chorusfont}{\bfseries}

\newindex{titleidx}{cbtitle}

\makeatletter
 \newcommand\myjustify{%%
 \ifSB@inverse\advance\leftskip\versenumwidth\fi%
 \SB@cbarshift%
 \parindent0pt
}
\makeatother
\renewcommand\versejustify{\myjustify}
\renewcommand\chorusjustify{\myjustify}

\begin{document}

\showindex{My index}{titleidx}

\begin{songs}{titleidx}

\beginsong{My cool song}[
  by={John Doe}]

\beginchorus
\lipsum[4]
\endchorus

\beginverse
\lipsum[3]
\endverse

\endsong

\end{songs}

\end{document}

Answer 2

It looks as if this is intended behaviour for the package. Song lyrics are divided into lines (or so it assumes), which are indented if they spill over into more than one line on the page. Unlike standard TeX, inside the songs environment line breaks are significant. So all you need to do is decide where you want the lines to break, and write something like

\documentclass[a4paper]{book}

\usepackage[lyric]{songs}
\usepackage{lipsum}

\renewcommand{\chorusfont}{\bfseries}

\newindex{titleidx}{cbtitle}

\begin{document}

\showindex{My index}{titleidx}

\begin{songs}{titleidx}

\beginsong{My cool song}[
  by={John Doe}]

\beginchorus
Lorem ipsum dolor sit amet, 
consectetur adipiscing elit.
This is a very long line which is going to break if I'm not careful.
\endchorus

\beginverse
Here we go round the mulberry bush,
Mulberry bush, mulberry bush.
\endverse

\endsong

\end{songs}

\end{document}

But if you still don't want any indentation, even on the broken line,

\parindent=0pt

is your friend.