← MusicalCONTENT HISTORYWHAT CHANGED · RULE-BASED ANALYSIS
changed
changed
Update to Musical
Snapshot Oct 9, 2026 · 00:10 UTC · version 0.1.0
Package or technical metadata updated
Discoverability changed from “UNLISTED” to “LISTED”.
Observed in package metadata. These changes alone do not establish a new customer-facing feature.
Discoverability
Before
UNLISTED
After
LISTED
Share url
Before
Not present
After
https://chatgpt.com/plugins/plugins_6aaf0c4ee1648191840a709e424ebb41?open_in_app
Compare saved observations
Download comparison JSONFull technical diff · 2 changed fields
changed /discoverability
BEFORE
"UNLISTED"
AFTER
"LISTED"
changed /share_url
BEFORE
null
AFTER
"https://chatgpt.com/plugins/plugins_6aaf0c4ee1648191840a709e424ebb41?open_in_app"
Full snapshot data
{
"canonical_app_id": null,
"connector_id": null,
"created_at": "2026-09-19T22:39:37.294881Z",
"discoverability": "LISTED",
"id": "plugins_6aaf0c4ee1648191840a709e424ebb41",
"is_template": false,
"name": "musical",
"release": {
"app_ids": [],
"app_manifest": null,
"app_templates": [],
"description": "Interactive music theory teacher and practice coach. Chords, intervals, scales and modes, key signatures, rhythm and notation.",
"display_name": "Musical",
"id": "pluginrel_337b7bc6aeb0819185bf69b1d75375ae",
"interface": {
"brand_color": "#7C3AED",
"capabilities": [],
"category": "Education & Research",
"composer_icon_dark_url": null,
"composer_icon_url": "https://files.openai.com/content?id=file_0000000072388210972cbc50d9e01dbe",
"default_prompt": "Use Musical to quiz me on intervals.",
"default_prompts": [
"Use Musical to quiz me on intervals.",
"Use Musical to drill me on chord spelling at an intermediate level.",
"Use Musical to run a practice session on key signatures."
],
"developer_name": "Nico Tejera",
"logo_url": "https://files.openai.com/content?id=file_00000000261881f4b953fda94ed7e193",
"logo_url_dark": null,
"long_description": "A practice coach for music theory. Drills chords, intervals, scales and modes, key signatures, rhythm and notation. Practises rather than lectures, grades spelling strictly, adapts difficulty, and replies in the learner's own language.",
"plugin_category_id": "education & research",
"privacy_policy_url": "https://musical.nicotejera.com/privacy",
"screenshot_urls": [],
"short_description": "Music teaching and practice",
"terms_of_service_url": "https://musical.nicotejera.com/terms",
"website_url": "https://musical.nicotejera.com"
},
"keywords": [
"music",
"music-theory",
"education",
"practice",
"ear-training",
"notation"
],
"mcp_servers": [],
"onboarding_skill_name": null,
"requires_local_executor": false,
"skills": [
{
"description": "Interactive music theory teacher and practice coach. Use when someone wants to learn, practise, drill, or be quizzed on music theory - chords and chord construction, intervals, scales and modes, key signatures, harmony and chord progressions, rhythm, rhythmic notation, beaming and bar structure, ear training, or note reading. Also use when someone asks you to check or grade a music theory answer, asks which notes are in a chord or scale, asks how to spell an interval, or asks for exercises or a practice session at some difficulty. Instrument-agnostic.",
"interface": {
"brand_color": null,
"default_prompt": "Use Musical to quiz me on intervals.",
"display_name": "Musical",
"icon_large_url": null,
"icon_small_url": null,
"iconography": "chart",
"short_description": "Interactive music theory teaching and practice"
},
"name": "musical",
"plugin_release_skill_id": "pluginrsk_6aaf0c5119ac81919737ccad0b3d494c"
}
],
"version": "0.1.0"
},
"scope": "GLOBAL",
"share_url": "https://chatgpt.com/plugins/plugins_6aaf0c4ee1648191840a709e424ebb41?open_in_app",
"status": "ENABLED"
}SHA-256 of public snapshot: 41d9f58e0ff0b69c728302f4b5393f5f46d75eed59e22a383dac1939a697864c