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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

MMD & MTN unveil the 28 new musicals and 12 Artist Spotlights at BEAM2025!

Musical Theatre Network, Mercury Musical Developments, in association with Birmingham Hippodrome, are thrilled to reveal the 28 musicals and 12...

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MMD & MTN unveil the 28 new musicals and 12 Artist Spotlights at BEAM2025!

Musical Theatre Network, Mercury Musical Developments, in association with Birmingham Hippodrome, are thrilled to reveal the 28 musicals and 12 Artist Spotlights that will be featured at BEAM2025, taking place on 15th and 16th May at Birmingham Hippodrome. BEAM2025 is...

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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...

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MMD April Open Mic Night

MMD is hosting another of its renowned Open Mic nights, which allows...

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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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What’s the best that can happen? – A blog by Emma Vieceli

I had joined MMD just two weeks before the Stiles + Drewe...

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Tuesday Tune-In: Musicals at fringe festivals

On the last Tuesday of each month we are holding an online...

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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