Folk, soul, rock, MPB, trot, and singer-songwriters in a radio-and-record culture.
Read the 1970s guideRead before you listen
Global Music Archive
This is the editorial center of Music Time Machine. It connects six decade guides, four regional histories, the archive's comparison method, playback standards, and dated correction notes. The interactive player remains the quickest way to hear a year; these pages explain what the selections mean and where the archive has limits.
What makes this an archive
The project does not reproduce a chart, scrape a streaming catalog, or treat an embedded video as original editorial work. Its contribution is the listening framework around those videos: a fixed year range, four deliberately different regions, manually reviewed title-and-artist records, contextual essays, cross-region comparison, and a public correction process.
The four regions are not intended to stand in for the whole world. They were chosen because they offer contrasting languages, recording industries, broadcast histories, and paths into digital music. Korea shows the long route from postwar popular song to K-pop. The US and UK provide an influential but not universal reference point. Japan demonstrates the strength of a large domestic market. Brazil keeps Portuguese-language popular music and a different rhythmic history inside the comparison.
56 yearsThe player covers 1970 through 2025, while recent years remain open to reassessment.
4 regionsKorea, US/UK, Japan, and Brazil are compared without forcing one shared chart.
500+ selectionsDistinct title-and-artist combinations are organized into practical listening windows.
Read by decade
Decade guides are the main historical layer of the archive. Each one identifies changes in production, distribution, performance, and audience habits, then asks how those changes appeared differently in the four regions. They are not summaries generated from the year pages; each guide has its own argument and recommended listening route.
Television, synthesizers, cassettes, arena scale, city pop, ballads, and local rock.
Read the 1980s guideHip-hop, alternative rock, dance music, J-pop, Brazilian hybrids, and first-generation K-pop.
Read the 1990s guideCD culture gives way to downloads, portals, online video, compressed audio, and faster global circulation.
Read the 2000s guideStreaming, social video, fandom coordination, playlists, and globally visible local scenes.
Read the 2010s guideShort-form discovery, genre fluidity, catalog revivals, and the challenge of judging recent work.
Read the 2020s guideRead by listening region
A region guide is the best starting point when local genre names, industry history, or language context matters more than a global comparison. Each guide is written for that region rather than being a mechanically translated copy of the same page.
포크, 트로트, 록, 발라드, 댄스 음악과 K-pop의 연결을 한국어로 설명합니다.
한국 가이드 읽기An English-language guide to the changing mainstream from soul and album rock to hip-hop and streaming pop.
Read the US/UK guide歌謡曲、フォーク、シティポップ、バンド、アイドル、アニメ関連音楽の流れを日本語でたどります。
日本ガイドを読むUm guia em português sobre MPB, samba, rock brasileiro, sertanejo, funk e pop contemporâneo.
Ler o guia do BrasilHow to use the year dial
Choose a year in the player, read the live comparison note, and then use the matching decade guide for historical context. The dial is best for immediate discovery; the longer guides are best for understanding why production, media, and public memory changed across several neighboring years.
- Compare radio-era songwriting across four regions, then continue with the 1970s guide.
- Listen for the different roles of television, studio polish, ballads, rock, and urban pop.
- Contrast a fragmenting US/UK mainstream with J-pop scale and a rapidly changing Korean market.
- Hear the point where online video and digital circulation begin changing what can travel globally.
- Compare streaming-era pop with strongly local scenes and globally coordinated fandoms.
Methods, standards, and accountability
Why the archive compares regions, what a representative selection can and cannot prove, and how to avoid treating one market as the world.
Read the methodPreferred sources, replacement rules, regional blocks, rights-holder control, and the archive's reporting workflow.
Read playback standardsSelection principles, conflicts, correction requests, commercial independence, and limitations.
Read the policyDated notes showing what changed and why, including meaningful additions and corrections.
Read update notes