Relish0171 [1] filed an orphan request for audiveris [2]: Package has been marked as outdated for a while now with no response, it also features some issues such as missing makedepends. I personally use it and would like to see it maintained.
My intention is to maintain it myself if this request goes through. [1] https://aur.archlinux.org/account/Relish0171/ [2] https://aur.archlinux.org/pkgbase/audiveris/
