% !TEX TS-program = lualatex  - % !TEX encoding = UTF-8  
% This is a  template for a LuaLaTeX document using gregorio scores.
\documentclass[a4paper,12pt]{article} % use larger type; default would be 10pt
\usepackage[papersize={8.27in,11.7in}, left=0.2in, right=0.2in, top=0.1in, 
bottom=0.3in,marginparwidth=3cm,marginparsep=3mm,heightrounded]{geometry}
\usepackage{fontspec}  % usual packages loading:
\usepackage[dutch]{babel}
\usepackage{color}
\usepackage{marginnote}
\usepackage{vmargin}
\usepackage{gregoriotex} % for gregorio score inclusion
\usepackage{fullpage} % to reduce the margins
\setmarginsrb{4cm}{1cm}{4cm}{1cm}{0.5cm}{15pt}{0.5cm}{0cm}
%\pagestyle{fancy}
\pagestyle{empty}
\begin{document}  % here we begin the document
%simplify your commands
\newcommand{\red}[1]{\textcolor{red}{#1}}
\newcommand{\black}[1]{\textcolor{black}{#1}}
\newcommand{\cent}[1]{\begin{center}{#1}\end{center}}
\newcommand{\links}[1]{\begin{flushleft}{#1}\end{flushleft}}
\input AnnSton.fd  %input the fonts
\input Acorn.fd
\newcommand\initfamily{\usefont{U}{Acorn}{xl}{n}}
\newcommand\yourfont{\usefont{U}{AnnSton}{xl}{n}} 
% The title:
\links{\small\bf{Gr.}\red{C}\black{onstitues eos}}
\cent{\LARGE\begin{yourfont}\red{G}\end{yourfont}\black{raduale Constitues eos}}
\bigskip
\gresetnabcfont{gregall}{10}
\gresetgregoriofont[op]{greciliae}
\grechangestaffsize{19}
\gresetbarspacing{new}
\grechangedim{maxbaroffsettextleft}{0}{scalable}
\grechangedim{spaceabovelines}{0.5cm}{scalable}
% Here we set the space around the initial.
\grechangedim{beforeinitialshift}{3.2mm}{scalable}  
\grechangedim{afterinitialshift}{3.2mm}{scalable}
\renewcommand\initfamily{\usefont{U}{Acorn}{xl}{n}}
% Here initial font. Change 43 for a bigger initial.
\grechangestyle{initial}{\initfamily\fontsize{36}{36}\selectfont\color{red}} 
\gresetlastline{justified}
% We set Gr and V above the initial- will overrule annotation in gabc file
\greannotation{\small \textbf{Gr - V}}
\links{\small GT.576 - Gebruik : SS. Petri et Pauli Apostolorum} 
 % We type a text in the top right corner of the score:  
\grecommentary[8mm]{\emph Ps.44,17;\Vbar.18}  
% and finally we include the score. 
%The file must be in the same directory as this one.
\marginnote{\small{Gij zult hen aanstellen tot vorsten over heel de aarde;
 uw naam Heer zullen zij indachtig zijn.}}[0]
\gregorioscore[a]{gr_constitues_Fullccc}
\vskip 0.5cm
\gresetinitiallines{0}
\marginnote{\small{Om in de plaats der vaderen te treden, 
zijn U zonen geboren; daarom zullen de volkeren U prijzen.}}[0]
\gregorioscore[a]{gr_constitues_vers}
\vskip 2cm
\cent{\greseparator{2}{20}}
\end{document}