A chorus that uses, for rehearsal and performance, the 5-century-old technology of printed music scores, will encounter pain points. Printed scores are expensive and difficult to stock and manage. Singers can find it hard to understand where in a score a director is, especially when members use different editions. Scores have mistakes to correct, details to tailor for a specific for performance, which are hard to communicate to each singer. And more. The coming public-domain digital music scores offer help for some of these pain points. Yet the printed scores have strengths, built by 5 centuries of music practice, which digital music scores will be hard put to match.