Academic article about the UK musicians' union ban on library music (1965-1978)

[Mr]

I stumbled upon this a few days ago, an interesting (though slightly heavy) read, which I hope this might be interesting to some of you:
https://www.cambridge.org/core/journals/popular-music/article/under-suspicion-library-music-and-the-musicians-union-in-britain-19601978/6AE379B790A22D64C5F84DAB65D80A91

It sheds some light on the cause and effect of the MU's embargo, and is sprinkled with interesting and slightly amusing details, from the origins of the Regency Line library, the post-embargo recording sessions in Europe (and secret recordings in the UK), and the unique relationship between De Wolfe and the Musicians' Union.