Esmuflily is an extension for LilyPond that supports SMuFL compliant fonts.
It provides switches for the SMuFL support and additional commands and styles for SMuFL glyphs not available in LilyPond. So scores can benefit from both, SMuFL's comprehensive character set and LilyPond's awesome Emmentaler font.
Accidentals and key signatures are omitted. They are supported in detail by Ekmelily.
Esmuflily requires LilyPond version 2.24 or higher.