\documentclass{article}
\usepackage{grffile}
\usepackage{pdfpages}
\begin{document}
\includepdf[pages=-]{build/pdf/Wilco/California Stars.pdf}
\includepdf[pages=-]{build/pdf/Wilco/California Stars Capo II.pdf}
\includepdf[pages=-]{build/pdf/Billy Joel/Don't Ask Me Why.pdf}
\includepdf[pages=-]{build/pdf/Billy Joel/Don't Ask Me Why Capo III.pdf}
\includepdf[pages=-]{build/pdf/Willie Nelson/On The Road Again.pdf}
\includepdf[pages=-]{build/pdf/Billie Eilish/wish you were gay.pdf}
\includepdf[pages=-]{build/pdf/Green Day/Boulevard of Broken Dreams.pdf}
\includepdf[pages=-]{build/pdf/Green Day/Boulevard of Broken Dreams Capo I.pdf}
\end{document}