Company Name - City
YearStart-YearEnd - Company Stage Manager, Summer Season
I have always been against the "big long list of shows" resume, preferring instead to tailor the resume to the job with a few highlights that apply to the position I am applying for.
Before my current role I used to have 30-100 resumes cross my desk a month (or rather in my inbox). Now I don't like to judge a book by its cover, however I would decide whether to read a resume based almost entirely over what it looked like when it opened in Acrobat Reader zoomed to show the full page. Not too long (know what I am interested in and give me that detail, unless there is a horse in the show, I don't care that you were a horse trainer for 6 months prior to college), not too cluttered, well formatted, no redundant headings (a sure sign of padding).
When I saw a big chunk of artistic credits I would read the first 2. If they didn't interest me I might not even continue on - or I might jump to the bottom to read the last one or two and then go straight to the next section - I am sure you can see the problem with listing chronologically here - I saw all the early stuff - hardly most peoples greatest works.
The few I really liked had "Career Highlights" and then attached a full history as a separate document. I never opened the full history - but during interviews I frequently asked them why the shows listed were career highlights; what made them pick those 3 or 4 shows - it helped me (as an interviewer) engage with the applicant. They were not necessarily the biggest shows they had worked on all the time, but rather ones that they felt passionate about. Essentially they took the opportunity to take control of the interview and get me to ask them questions about shows they could be positive about. As an interviewer, I was fine with that.
It provided talking points that helped me identify whether the things that this person picked as a highlight of their career would be present in the position I was potentially going to offer. It also helped me to target what they didn't say - you liked the team, well have you ever worked on a show with a team you didn't like - how did you handle it. The show was really complex and technical and it kept you engaged for the entire 6 month run? Well have you worked on many shows without a strong technical element that was an extended run? How did you fight the tedium to stay engaged? You really enjoy the classics (Sondheim, G&S, ALW, Willie Shakespere)? Well how up to date are you with new Australian works?
I guess the tldr; Employment history does not have to be a giant list of shows and positions. Something like being employed for full seasons should absolutely be represented somewhere but reconsider the long list of shows - or whether it is necessary to be included in the main body of your resume - in fact a regular recurring gig like summer season CSM could be just a highlight of your career (enjoy developing a relationship with a company, integrating with their culture etc etc etc).