% !TEX TS-program = lualatex
% !TEX encoding = UTF-8

% https://gregobase.selapa.net/?page_id=2

\documentclass[12pt]{article}
\usepackage{geometry}
\geometry{paperwidth=16cm,paperheight=600cm}
\usepackage{gregoriotex}
\usepackage{fullpage}
\usepackage{multicol}
\usepackage{paracol}
\usepackage{Tabbing}
\usepackage{longtable}
\usepackage[savepos]{zref}

\let\grelocalleftbox\localleftbox
\let\grelocalrightbox\localrightbox

\usepackage[latin]{babel}

\usepackage{fontspec}
\defaultfontfeatures{Ligatures=TeX}
\setmainfont{Libertinus Serif}

\pagestyle{empty}
\begin{document}
\newcommand{\red}[1]{\textcolor{red}{#1}}
\newcommand{\black}[1]{\textcolor{black}{#1}}
\setlength{\parindent}{0pt}
\gresetbracerendering{font}
