{"id":19514869,"url":"https://github.com/ndp/jazz-viz","last_synced_at":"2026-06-19T09:31:56.081Z","repository":{"id":152365918,"uuid":"612434071","full_name":"ndp/jazz-viz","owner":"ndp","description":"Visualization of Jazz Changes, and other Ruminations","archived":false,"fork":false,"pushed_at":"2023-03-11T06:41:47.000Z","size":251,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-11-20T09:03:31.602Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/ndp.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2023-03-11T00:06:55.000Z","updated_at":"2023-03-11T00:07:37.000Z","dependencies_parsed_at":"2024-03-30T19:15:19.944Z","dependency_job_id":null,"html_url":"https://github.com/ndp/jazz-viz","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/ndp/jazz-viz","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ndp%2Fjazz-viz","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ndp%2Fjazz-viz/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ndp%2Fjazz-viz/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ndp%2Fjazz-viz/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/ndp","download_url":"https://codeload.github.com/ndp/jazz-viz/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ndp%2Fjazz-viz/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":34526065,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-26T15:22:16.424Z","status":"online","status_checked_at":"2026-06-19T02:00:06.005Z","response_time":61,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-10T23:37:53.563Z","updated_at":"2026-06-19T09:31:56.060Z","avatar_url":"https://github.com/ndp.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"When I'm soloing I want to know what the \"new\" notes are as \nthe chords change: notes that the listener hasn't heard lately\nor at all (in this song). That's the idea. I may explore other\nideas once I have the basic mechanics working.\n\nI was inspired by [Bob Keller's \"How to Key-Map a Tune\"](https://www.cs.hmc.edu/courses/common/mus84/KeyMaps.pdf), which brings Excel spreadsheets into the jazz (why not?). This approach is a much\nmore conventional jazz theory (and probably better) approach. If\nyou are learning jazz theory, start there.\n\n## Example\n\nIn this one, we see \"new\" notes in green, and repeated \nnotes in gray:\n\n\u003cimg src='./autumn-leaves-1-8.png' /\u003e\n\nI see this as a tool for analysis, not any sort of real-time usage.\n\nFor me, this is more interesting on a song that confounds me a bit, like Dolphin Dance. I still haven't quite figured out how to bring coherence to the chords:\n\n\u003cimg src='./dolphin-dance-1-16.png' /\u003e\n\n\n## Future\n\nRight now, you enter chords yourself. I went this route \nhunting around for existing libraries and not finding anything \nthat would work well. I can imagine a way to paste in a whole tune.\n\nI wonder if doing a gradient of how popular a note is might be interesting.\n\n\n\n## Credits\n\n- uses a library called [vexflow](https://github.com/0xfe/vexflow/) for rendering the notes and staves.\n- uses a library called `chord-symbol` to translate chord symbols\n  to notes.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fndp%2Fjazz-viz","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fndp%2Fjazz-viz","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fndp%2Fjazz-viz/lists"}