The Index of Forbidden Books was created to control the spread of ideas deemed dangerous or harmful to the Church's authority and moral teachings.

Parsifal was banned due to its perceived religious and political overtones, which were seen as conflicting with Nazi ideology.

Rock and roll music was seen as a threat to traditional values and a symbol of juvenile delinquency, leading to its censorship by conservative groups.

The BBC banned the song due to its perceived drug references and its potential to encourage drug use among young listeners.

Madonna's album "Like a Virgin" was targeted by the PMRC for its sexually suggestive lyrics and music videos.

China has a strict censorship policy towards music that is seen as promoting violence, pornography, or religious extremism.

The FCC v. Pacifica Foundation case established the FCC's authority to regulate indecent content on broadcast media.

N.W.A's lyrics and performances were often seen as violent, misogynistic, and anti-establishment, leading to bans in several countries.

Spotify has been criticized for removing songs and artists from its platform due to political or moral reasons, including songs critical of certain governments or artists accused of sexual misconduct.

UNESCO has been actively involved in promoting freedom of expression in music and advocating against censorship through its various programs and initiatives.

Bowdlerization is the practice of removing or altering lyrics or content in music to make it more acceptable to a wider audience, often for moral or religious reasons.

Pete Seeger was blacklisted and prevented from performing on television and radio due to his political activism and support for social justice movements.

The Red Hot Chili Peppers' album "Californication" was banned in Singapore due to its sexually suggestive lyrics and album artwork.

The Sex Pistols were banned from performing on the BBC due to their controversial lyrics and stage performances, which were seen as offensive and provocative.

2Pac was sentenced to prison for lyrics that were deemed to be threatening to law enforcement officers, highlighting the intersection of music and the criminal justice system.