Craig Latta got a spread in this week's SD Times - with an article about how he produces music with Smalltalk:

Most concertgoers are used to seeing large projection screens behind the performers. Trippy or poignant visuals are a standard part of any major musical performance these days. But when Craig Latta performs his extemporaneous pieces in front of an audience, the screens behind him project source code.

These musical performances don’t come from a set list, and his visual performances aren’t just precooked movie clippings or looped mandalas. Latta, instead, improvises the creation of both his musical and visual presentations. His instrument is the keyboard, and his music staff is accessed via Smalltalk.