1956–1963
A distinct youth market forms around singles, radio, jukeboxes and television. Early rock and roll shares the charts with traditional pop, vocal groups and country-influenced records.
1964–1969
The British Invasion, Motown, soul, folk-rock and psychedelia rapidly expand the mainstream sound.
1970s
Singer-songwriters, soul, funk, disco, hard rock, soft rock and country-pop create a highly fragmented marketplace.
1980s
Music video, synthesizers, electronic percussion and global superstar promotion reshape hitmaking.
1990s
Alternative rock, hip-hop, R&B, country, dance music and teen pop compete within the peak CD era.
2000s
Downloads weaken the album’s control over listening, while digital singles and online discovery gain influence.
2010s
Streaming playlists, social media and genre-blurring collaborations become central to discovery.
2020–2024
Short-form video, global fan communities and catalogue revival make hit cycles less predictable.