Thank you for your interest in the Imperial Productions Gilbert and Sullivan Marathon 2023.

Yes, it’s back... spend the early May bank holiday weekend singing and/or playing and/or MDing the complete works of Gilbert and Sullivan (in reverse chronological order) and featuring Trial by Jury twice, complete with dialogue, chorus and orchestra!

For many years, the Gilbert and Sullivan Marathon was a staple in the Imperial Opera and Imperial College Operatic Society’s diary. After too long a gap, we are thrilled to be bringing this joyous weekend back, on Saturday 29 April - Sunday 30 April at Hounslow Heath Infant School, Martindale Road, Hounslow, TW4 7HE (less than a ten minute walk from Hounslow West Underground Station on the Piccadilly Line).

We need singers, instrumentalists, music directors and pianists. We also need general helpers and cooks. Sing, cook, play in any combination throughout. Do the whole thing, or join for specific bits.

Bring your own vocal scores (or download them onto a viewing device of choice). We will provide instrumental parts.

Whilst the Marathon is a fantastic opportunity to have a go, please only apply for leading roles if you’re willing to put in the time to prepare them. To enable the most enjoyable experience for all, it is expected that you are at least familiar with any large roles you ask to perform. The marathon will be cast as fairly as possible, by the organising committee. Everyone is welcome to sing in the chorus! Soloists do, of course, sing along with the chorus (unless they’ve a solo line… which would be tricky).

Each operetta will be stick conducted by an MD, conducting the orchestra, soloists and chorus, and accompanied by as large and diverse an orchestra as we can assemble, although each operetta will have piano accompaniment to support and fill in any gaps required. We will provide parts. Reasonable sight-reading skills will be needed.

As in previous years, this is a charity event. On this occasion we’re supporting Mind (registered charity no. 219830). There will be collection boxes on the day and the JustGiving page is here: We suggest any donation up to £20 (but absolutely not obligatory) per participant.

Please complete this participation form by 23 March so that we have plenty of time to assign roles, MDs, instrumentalists and pianists.

Participation is not restricted to past and present members of Imperial Productions – it is an open event – please do spread the word.

Additional information surrounding parking, sign-in/out, directions, souvenier t-shirts, rooms/facilities, meals, things to bring, etc. will follow, once participation forms have all been received. Any questions in the meantime, please email:

We very much look forward to seeing as many as you as possible for what will be a glorious weekend!


Saturday 29 April

11:00 – 11:40  Trial by Jury
11:45 – 14:20  The Grand Duke
14:20 – 14:50  LATE LUNCH
14:50 – 17:20  Utopia, Limited
17:30 – 19:50  The Gondoliers
19:50 – 20:30  DINNER
20:30 – 22:50  The Yeomen of the Guard
23:00 – 01:20  Ruddigore
Sunday 30 April

01:30 – 03:50  The Mikado
04:00 – 06:10  Princess Ida
06:20 – 08:30  Iolanthe
08:30 – 9:00    BREAKFAST
09:00 – 11:00  Patience
11:10 – 13:00  The Pirates of Penzance
13:00 – 13:30  LUNCH
13:30 – 15:15  H.M.S. Pinafore
15:25 – 17:10  The Sorcerer
17:20 – 18:00  Trial by Jury
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