[Tex/LaTex] change header to part name (classicthesis)

classicthesisheader-footer

I would like to change the header from chapter without number (left) and section with number (right) to part without number (left) and chapter with number (right):

\documentclass[twoside,openright,titlepage,numbers=noenddot,headinclude,
    footinclude=true,cleardoublepage=empty,
    BCOR=5mm,paper=a4,fontsize=10pt]{scrbook}
\usepackage{lipsum}

\usepackage[parts,beramono,eulerchapternumbers,%
listings,manychapters,%
floatperchapter]{classicthesis} 

\begin{document}
\pagestyle{scrheadings}
\part{Introduction}
\chapter{First chapter}
\section{First section}
\lipsum[1-18]
\section{Second section}
\lipsum[1-12]
\end{document}

Best Answer

classicthesis loads scrpage2. You can use

  \automark[chapter]{part}
  \renewcommand{\partmark}[1]{\markboth{\spacedlowsmallcaps{#1}}{}}

enter image description here enter image description here

Code:

\documentclass[twoside,openright,titlepage,numbers=noenddot,headinclude,
    footinclude=true,cleardoublepage=empty,
    BCOR=5mm,paper=a4,fontsize=10pt]{scrbook}
\usepackage{lipsum}

\usepackage[parts,beramono,eulerchapternumbers,%
listings,manychapters,%
floatperchapter]{classicthesis} 
%
  \automark[chapter]{part}
  \renewcommand{\partmark}[1]{\markboth{\spacedlowsmallcaps{#1}}{}}
%
\begin{document}
\pagestyle{scrheadings}
\part{Introduction}
\chapter{First chapter}
\section{First section}
\lipsum[1-18]
\section{Second section}
\lipsum[1-12]
\part{Main}
\chapter{Second chapter}
\section{First section}
\lipsum[1-18]
\section{Second section}
\lipsum[1-12]
\end{document}
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