Hi, I’m Isaac. A Musical Director, Conductor and Pianist based in London.

S C R O L L

  • ‘Isaac led the orchestra and cast of players with a sure baton and achingly beautiful musicality. What a treat to be able to sit back and truly enjoy our journey back to Eastwick.’

    — Dana P. Rowe, Composer Witches of Eastwick —

  • ‘The whole score receives the royal treatment in the capable hands of music director Isaac McCullough’

    — A Younger Theatre —

  • ‘The total twelve cast members accompanied by a small but powerful band (brilliantly led by Isaac McCullough) fill the theatre with beautiful harmonies and create a sound worthy of a West End stage.’

    — London Theatre —

  • ‘The band, under Isaac McCullough lend them superb accompaniment.‘

    — London Theatre —

 

Conducting Mary Poppins at the Prince Edward Theatre, London.
Disney and Cameron Mackintosh Production

 

Recent Credits

 

Stephen Sondheim’s Old Friends
Gielgud Theatre

Associate Musical Director
Director: Sir Matthew Bourne

★★★★★ - London Theatre
★★★★★ - The Telegraph

The Witches of Eastwick
Sondheim Theatre

Musical Supervisor/Conductor
Director: Maria Friedman

★★★★★ - fintothewoods

Mary Poppins 
Prince Edward Theatre

Assistant Musical Director
Directors: Sir Richard Eyre

★★★★★ - The Guardian
★★★★★ - The Telegraph

Miss Saigon
UK and International Tour

Assistant Musical Director
Director: Laurence Connor

★★★★★ - Broadway World
★★★★★ - The Reviews Hub

Sunset Boulevard
UK and International Tour and Live Stream

Assistant Musical Director
Director: Nikolai Foster

★★★★★ - WhatsOnStage
★★★★ - The Stage
★★★★ - The Times

Working: A Musical
Southwark Playhouse

Musical Director
Director: Luke Shepherd

★★★★★ - London Theatre 1
★★★★★ - Jonathan Baz
★★★★ - British Theatre

 

About Isaac

Isaac is a creative, experienced, and ambitious Musical Director working in Musical Theatre both in the UK and internationally. He is passionate about making Musical Theatre the best it can be.