Related to the topic of music on the Mark I: "BBC finds oldest digital music recording", https://bit-tech.net/news/beeb-finds-oldest-digital-music-re...
See also this paper for a bit more background: https://link.springer.com/chapter/10.1007/978-3-319-53280-6_...
> David Link’s eponymous installation LoveLetters was first shown at dOCUMENTA(13), 2012. In it, the artist and computer archeologist Link romantically resurrects the earliest electronic, programmable and universal calculating machine worldwide: the Manchester University Computer or MUC. In 1953 and out of nowhere, it started to produce strange and touching love letters, addressed to anonymous people, or perhaps machines. The present version Love Letters – core is also based on the original source code by Christopher Strachey, a friend and colleague of Alan M. Turing, from 1951, and accompanied by two photographic prints of love letters on vintage CR tubes in the first on-screen font ever.
(Gallery Gabriele Senn, https://galeriesenn.at/love-letters/)