% !TEX TS-program = LuaLaTeX+se

\documentclass[12pt, a5paper]{article}

\usepackage{fontspec}
\usepackage{fullpage}
\pagestyle{empty}

\usepackage{libertine}
\usepackage[autocompile]{gregoriotex}

\begin{document}

\fontsize{12}{12}\selectfont
\gregorioscore{case1}

\end{document}
