The new Wikipedia:WikiProject Media Restoration has several goals. One of them is to assemble media sets for composers and songwriters. This involves cross-project collaboration between Commons, Wikisource, and Wikipedia.
The idea grew out of something I noticed: in over 2 years since I raised Joan of Arc to featured article and the text has been translated into 3 languages. When I started doing image restorations the first one that got featured on Commons got its captions translated into 2 dozen languages within a couple of months. Media travels between languages more easily than articles, so it makes sense to build upon that synergy.
The drive is called a recording, a score, and a portrait: when people can hear the music and read the notes and see the composer's face, it introduces the artist even if an article is a stub. Many thanks to the regulars at Not the Wikipedia Weekly for their help.