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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

Recipients of 2025 Cameron Mackintosh Resident Musical Theatre Writing Team Announced

Musical Theatre Network (MTN) and Mercury Musical Developments (MMD) are thrilled to announce that Clare Packham and Fintan Kealy have...

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Recipients of 2025 Cameron Mackintosh Resident Musical Theatre Writing Team Announced

Musical Theatre Network (MTN) and Mercury Musical Developments (MMD) are thrilled to announce that Clare Packham and Fintan Kealy have been selected as the next recipients of the Cameron Mackintosh Resident Musical Theatre Writer placements at British Youth Music Theatre...

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February Applications

MMD are delighted to be opening 3 applications this month! The Mercury...

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Tickets on sale for BEAM2025

Musical Theatre Network and Mercury Musical Developments in association with Birmingham Hippodrome...

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MMD in Tokyo! – A blog by Rachel Bellman

I’m writing this from an altitude of 38999 feet, eight hours into...

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Stiles + Drewe and Mercury Musical Developments announce winner for the 2024 Best New Song Prize

The winner is Emma Vieceli with song ‘It Starts Small’ from the...

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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