Stevie Wonder, Chvrches and Belle And Sebastian are the latest artists to back the #MusicWithoutBarriers campaign, which aims to give deaf and disabled music fans equal access to live music.

Launched by Attitude Is Everything in June, the initiative is encouraging UK festivals and venues to sign the charity's Charter of Best Practice, which includes four key messages.

The campaign notes that improving access does not have to be costly and there is a strong business case for doing ...