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Where new musicals begin

Mercury Musical Developments (MMD) is a membership organisation dedicated to musical theatre writing.

We are a thriving community of over 400 composers, lyricists and book writers from across the UK and the world. We run a year-round programme of initiatives designed to support members through a range of professional development and showcasing initiatives, including masterclasses, residencies, writers’ groups and mentorships.

We connect the wider theatre industry with writers and their musicals, seeking out opportunities, discovering talent and nurturing new work, ensuring that British musical theatre has a bright future.

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What's Going On

News, events and upcoming opportunities

How To Succeed In Business: Budgeting an R&D Workshop

This workshop is the first in a three-part series 'How To Succeed In Business', designed to equip writers of new musical...

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How To Succeed In Business: Budgeting an R&D Workshop

This workshop is the first in a three-part series 'How To Succeed In Business', designed to equip writers of new musical theatre with skills and knowledge related to the business side of getting their work on stage. Join producer Tanya Truman (How To...

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June 1 @ 7:00 pm - 9:00 pm

MMD June Open Mic Night

MMD is back with our third Open Mic night of 2026! This...

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The title Public the Musical is on a gold sign against a red background

June 6 @ 2:00 pm - 5:00 pm

PUBLIC Theatre Trip + Q+A

PUBLIC Member Event! Join MMD & MTN members and staff on a day...

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Sarah Whitfield speaks at the UK Musical Theatre Conference

June 9 @ 4:00 pm - 5:30 pm

Crowd sourcing the story of British musical theatre 2010-2019

Sarah K. Whitfield and Clare Chandler have been working on an incomplete list...

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Sarah K Whitfield speaks at the UK Musical Theatre Conference

June 15 @ 4:00 pm - 5:30 pm

We are here: building a sustainable future for capturing British musical theatre

Calling musical theatre creatives, organisation, and data professionals who love musicals! After...

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February 11, 2026

I Organised A Musical Theatre Bookwriter Wikithon And All I Got Was 59,000 Article Views – Blog by Helen Arney

On a cold January afternoon, nine musical theatre bookwriters, two Wikimedia trainers...

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Memberships

Join MMD and become part of a community of writers at the forefront of new musical theatre

Masterclasses and talks

Attend regular events led by industry experts and grow your knowledge and skills

Advice and script reading

Get feedback on your writing, mentoring and practical advice

Meet other writers

Create a network and find your collaborators

Career opportunities

Showcase your work and make industry connections

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