\documentclass[a5paper]{leadsheet}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[polish]{babel}

\usepackage{leadsheets}
\DeclareTranslation{Polish}{leadsheets/chorus}{Ref.}

\defleadsheetstranslation{Polish}{of}{z}
\defleadsheetstranslation{Polish}{page}{}

\definesongtitletemplate{kamuzo}{
\pagebreak[2]
\section*{\songproperty{counter}.\\* \songproperty{title}}
}

\setleadsheets{
title-template = kamuzo,
smash-chords=true,
align-chords=c
}

\setchords{
  minor={lowercase},
  output-notation=german,
  input-notation=german
}

\begin{document}
\pagenumbering{arabic}