\documentclass{article}
\usepackage{grffile}
\usepackage{pdfpages}
\begin{document}
\includepdf[pages=-]{build/pdf/R.E.M./Bad Day (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Cuyahoga (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Don't Go Back To Rockville (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Driver 8 (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Everybody Hurts (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Fall On Me (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./It's the End of the World as We Know It (And I Feel Fine) (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Losing My Religion (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Pretty Persuasion (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Radio Free Europe (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Talk About The Passion (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./Texarkana (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./The One I Love (chords).pdf}
\includepdf[pages=-]{build/pdf/R.E.M./World Leader Pretend (chords).pdf}
\end{document}