# Change citation delimiter between works of the same author (biblatex)

I can change the delimiter between multiple citations in biblatex with \multicitedelim, but this only applies to citations with different authors. When I have multiple citations with the same author, however, it seems to print a comma every time. As in the example below, this can be very confusing if you use another symbol, e.g. a semicolon ; as your citation delimiter, and a comma as your page delimiter.

How can I set the delimiter between citations of the same author to be the same as the delimiter between different authors?

\documentclass{article}
\usepackage[style=authoryear, citestyle=authoryear-comp]{biblatex}
\DeclareFieldFormat{postnote}{#1}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@BOOK{lennon1971,
AUTHOR = "John Lennon",
TITLE = "My really long book on my life",
YEAR = "1971",
LOCATION = "Liverpool",
PUBLISHER = "Penny Lane Press"}
@BOOK{lennon1973,
AUTHOR = "John Lennon",
TITLE = "Music -- why I make it",
YEAR = "1973",
LOCATION = "London",
PUBLISHER = "Johnny Smith"}
@BOOK{mccartney1979,
AUTHOR = "Paul McCartney",
TITLE = "Penny Lane is still in my ears",
YEAR = "1979",
LOCATION = "New York",
PUBLISHER = "Peter Alden"}
\end{filecontents}
\begin{document}
\cites[282, 1967]{lennon1971}{lennon1973}{mccartney1979}
\printbibliography
\end{document}


• Would you like \renewcommand{\compcitedelim}{\multicitedelim}? Nov 14 '13 at 18:10
• Yes, I would like that very much :P Feel free to turn your comment into an answer. Nov 14 '13 at 18:14

biblatex provides a host of delimiters, amongst them are (definitions from biblatex.def)

\newcommand*{\multicitedelim}{\addsemicolon\space}


What you want is probably \renewcommand{\compcitedelim}{\multicitedelim}.

MWE

\documentclass{article}
\usepackage[style=authoryear-comp]{biblatex}
\DeclareFieldFormat{postnote}{#1}
\renewcommand{\compcitedelim}{\multicitedelim}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@BOOK{lennon1971,
AUTHOR = "John Lennon",
TITLE = "My really long book on my life",
YEAR = "1971",
LOCATION = "Liverpool",
PUBLISHER = "Penny Lane Press"}
@BOOK{lennon1973,
AUTHOR = "John Lennon",
TITLE = "Music -- why I make it",
YEAR = "1973",
LOCATION = "London",
PUBLISHER = "Johnny Smith"}
@BOOK{mccartney1979,
AUTHOR = "Paul McCartney",
TITLE = "Penny Lane is still in my ears",
YEAR = "1979",
LOCATION = "New York",
PUBLISHER = "Peter Alden"}
\end{filecontents}