Collective Bargaining Agreements What is a Collective Bargaining Agreement and how might it affect you? Last updated: 06 October 2026 A collective bargaining agreement (CBA) is a formal contract between engagers and the Musicians' Union (MU). The MU negotiates and agrees minimum terms and conditions, including rates of pay, for employed and self-employed players with all major UK theatres. They also cover broader issues like the use of recorded music within a production. During negotiations, it’s important to find out whether your commissioner is party to an agreement with the MU. For example, commissioners who are members of organisations such as SOLT (The Society of London Theatre), which represents West End theatres, or UK Theatre, which represents regional and subsidised theatres, are bound by agreements with the MU. While these agreements only apply to players, they may still impact on the work you are being asked to deliver. The MU’s CBAs have strict rules around the use of recorded music. This means you could be asked to create or supply recorded music in circumstances where the production is not actually permitted to use it under the relevant agreement. Starting work before agreeing the terms of your contract could create uncertainty around payment, particularly if there are any misunderstandings about how your music can be used or what your deliverables include. It's important to get this information before you start working on the project, as it will help you understand any restrictions that might affect how your music is performed. You can find a list of the Musicians' Union Theatre Agreements on our website, while information about UKT members and a directory of SOLT venues is available through the relevant organisations. If you have any further questions, please contact your regional office.