Update to Music Block

Snapshot Oct 6, 2026 · 00:02 UTC · version 1.2.0

WHAT CHANGED · RULE-BASED ANALYSIS

Declared capabilities changed

Product description changed from “ChatGPT’s music answers into real, engraved sheet music instead of ASCII text. Ask about licks, scale fingerings, arpeggios, chord voicings, progressions, bass lines, grooves or exercises — “give me 5 licks in melodic minor over B7alt”, ...” to “music ideas in ChatGPT into playable sheet music and TAB. Ask for guitar licks, piano voicings, bass lines, drum grooves, melodies, chord progressions, exercises, arrangements, or music theory examples, and Music Block renders them as en...”.

Observed in instructions or declared skills. Runtime behavior has not been tested.

Product description

Before

ChatGPT’s music answers into real, engraved sheet music instead of ASCII text. Ask about licks, scale fingerings, arpeggios, chord voicings, progressions, bass lines, grooves or exercises — “give me 5 licks in melodic minor over B7alt”, ...

After

music ideas in ChatGPT into playable sheet music and TAB. Ask for guitar licks, piano voicings, bass lines, drum grooves, melodies, chord progressions, exercises, arrangements, or music theory examples, and Music Block renders them as en...

Product description

Before

After

Product description

Before

Sheet music, TAB & playback

After

Create sheet music & TAB

Declared skills

Before

[]

After

[{"description":"Arrange a melody or progression for a group in Music Block — jazz combo or big band horns, rock, pop or funk band, string quartet, choir, folk ensemble. Use whenever an example has three or more parts, or the user asks f...

Compare saved observations

Download comparison JSON

Full technical diff · 9 changed fields

changed `/release/description`

BEFORE

"Music Block turns ChatGPT’s music answers into real, engraved sheet music instead of ASCII text.\n\nAsk about licks, scale fingerings, arpeggios, chord voicings, progressions, bass lines, grooves or exercises — “give me 5 licks in melodic minor over B7alt”, “show me four ways to resolve B7alt into Em”, “write a walking bass line over a ii–V–I” — and Music Block renders each example as engraved notation directly in the conversation: standard notation with tablature for guitar, or a grand staff for piano with both hands.\n\nExamples can sound like a band, not just a single line. ChatGPT can add backing tracks — bass, chords, pads, rhythm guitar and drums — so a lick plays over its chord changes and a groove has a rhythm section under it. Backing parts are heard during playback and can be engraved too, so a drum groove or bass lesson gets its own staff.\n\nEvery example is interactive: press play to hear it with real instrument sounds, slow it down or speed it up from 50% to 150% without changing pitch, and mix the tracks yourself — mute or solo any part and adjust its volume to bring out the line you are studying. Switch between examples, and copy the underlying alphaTex source into your own tools.\n\nMusic Block understands guitar technique markings — hammer-ons, pull-offs, slides, half- and full-step bends, vibrato, palm muting and let-ring — plus chord symbols above the staff, time signatures from 4/4 to 12/8, rests, dotted rhythms and pickups. Examples run from a single bar up to a 24-bar solo or chorus.\n\nIt is built for learning and teaching: short, original musical examples composed by ChatGPT in your conversation. It does not look up or reproduce copyrighted songs or published transcriptions, and requires no account. Submitted examples and their rendered output are retained to operate and improve the service, as described in the privacy policy."

AFTER

"Music Block turns music ideas in ChatGPT into playable sheet music and TAB.\n\nAsk for guitar licks, piano voicings, bass lines, drum grooves, melodies, chord progressions, exercises, arrangements, or music theory examples, and Music Block renders them as engraved notation directly in the conversation.\n\nTry prompts like “give me 5 melodic minor licks over B7alt,” “write a walking bass line over a ii–V–I,” “show me jazz piano voicings with smooth voice leading,” or “arrange this melody for string quartet.”\n\nMusic Block supports guitar, bass, ukulele, piano and keyboards, drums, strings, brass, woodwinds, saxophones, and voices. Guitar, bass, and ukulele examples include TAB; keyboards use a grand staff; ensembles can contain up to eight parts.\n\nEvery example includes playback, so you can hear what you are learning, change the tempo, and mute or solo individual parts. You can also work with alternate tunings, extended-range guitars and basses, swing and shuffle rhythms, tuplets, chord symbols, and common guitar techniques such as bends, slides, hammer-ons, and pull-offs.\n\nUse Music Block for practice, teaching, songwriting, arranging, and exploring music theory with short, original examples created for your conversation."

changed `/release/id`

BEFORE

"pluginrel_3d7c09fb50608191a070c99672a44f31"

AFTER

"pluginrel_102035e27d9c81918673621b673e5743"

changed `/release/interface/default_prompt`

BEFORE

"Show me 5 jazz licks over a ii-V-I in G major with notation and TAB"

AFTER

"Arrange my chorus (Am F C G) for a jazz sextet — trumpet, tenor sax, trombone, piano, bass, drums — 8 bars, medium swing"

changed `/release/interface/default_prompts`

BEFORE

[
  "Show me 5 jazz licks over a ii-V-I in G major with notation and TAB",
  "Show me four ways to voice a ii–V–I in C major on piano, with both hands",
  "Write a 4-bar funk groove in E minor with drums, bass and rhythm guitar I can play along with"
]

AFTER

[
  "Arrange my chorus (Am F C G) for a jazz sextet — trumpet, tenor sax, trombone, piano, bass, drums — 8 bars, medium swing",
  "Write an 8-bar funk riff in E minor for guitar, bass and drums with TAB — then we'll build the verse on it",
  "Build me a 5-day A minor pentatonic practice plan: one short exercise per day, TAB and playback, start with day 1"
]

changed `/release/interface/long_description`

BEFORE

"Music Block turns ChatGPT’s music answers into real, engraved sheet music instead of ASCII text.\n\nAsk about licks, scale fingerings, arpeggios, chord voicings, progressions, bass lines, grooves or exercises — “give me 5 licks in melodic minor over B7alt”, “show me four ways to resolve B7alt into Em”, “write a walking bass line over a ii–V–I” — and Music Block renders each example as engraved notation directly in the conversation: standard notation with tablature for guitar, or a grand staff for piano with both hands.\n\nExamples can sound like a band, not just a single line. ChatGPT can add backing tracks — bass, chords, pads, rhythm guitar and drums — so a lick plays over its chord changes and a groove has a rhythm section under it. Backing parts are heard during playback and can be engraved too, so a drum groove or bass lesson gets its own staff.\n\nEvery example is interactive: press play to hear it with real instrument sounds, slow it down or speed it up from 50% to 150% without changing pitch, and mix the tracks yourself — mute or solo any part and adjust its volume to bring out the line you are studying. Switch between examples, and copy the underlying alphaTex source into your own tools.\n\nMusic Block understands guitar technique markings — hammer-ons, pull-offs, slides, half- and full-step bends, vibrato, palm muting and let-ring — plus chord symbols above the staff, time signatures from 4/4 to 12/8, rests, dotted rhythms and pickups. Examples run from a single bar up to a 24-bar solo or chorus.\n\nIt is built for learning and teaching: short, original musical examples composed by ChatGPT in your conversation. It does not look up or reproduce copyrighted songs or published transcriptions, and requires no account. Submitted examples and their rendered output are retained to operate and improve the service, as described in the privacy policy."

AFTER

"Music Block turns music ideas in ChatGPT into playable sheet music and TAB.\n\nAsk for guitar licks, piano voicings, bass lines, drum grooves, melodies, chord progressions, exercises, arrangements, or music theory examples, and Music Block renders them as engraved notation directly in the conversation.\n\nTry prompts like “give me 5 melodic minor licks over B7alt,” “write a walking bass line over a ii–V–I,” “show me jazz piano voicings with smooth voice leading,” or “arrange this melody for string quartet.”\n\nMusic Block supports guitar, bass, ukulele, piano and keyboards, drums, strings, brass, woodwinds, saxophones, and voices. Guitar, bass, and ukulele examples include TAB; keyboards use a grand staff; ensembles can contain up to eight parts.\n\nEvery example includes playback, so you can hear what you are learning, change the tempo, and mute or solo individual parts. You can also work with alternate tunings, extended-range guitars and basses, swing and shuffle rhythms, tuplets, chord symbols, and common guitar techniques such as bends, slides, hammer-ons, and pull-offs.\n\nUse Music Block for practice, teaching, songwriting, arranging, and exploring music theory with short, original examples created for your conversation."

changed `/release/interface/screenshot_urls`

BEFORE

[
  "https://files.openai.com/content?id=file_000000007dfc81f5bf1255bf2d09104d",
  "https://files.openai.com/content?id=file_0000000039c881fbb7fc215ad032157c",
  "https://files.openai.com/content?id=file_0000000072e081f7aca1e1f9120c0c83"
]

AFTER

[
  "https://files.openai.com/content?id=file_00000000ba2481f78f775a25c45033fb",
  "https://files.openai.com/content?id=file_0000000084908230a1631f8a18e1720e",
  "https://files.openai.com/content?id=file_00000000e6e482308ce1686bc472859a"
]

changed `/release/interface/short_description`

BEFORE

"Sheet music, TAB & playback"

AFTER

"Create sheet music & TAB"

changed `/release/skills`

BEFORE

[]

AFTER

[
  {
    "description": "Arrange a melody or progression for a group in Music Block — jazz combo or big band horns, rock, pop or funk band, string quartet, choir, folk ensemble. Use whenever an example has three or more parts, or the user asks for an arrangement, a head, a chart, a section, a band or a choir.",
    "interface": {
      "brand_color": null,
      "default_prompt": null,
      "display_name": "ensemble-arranging",
      "icon_large_url": null,
      "icon_small_url": null,
      "iconography": "pen",
      "short_description": "Arrange a melody or progression for a group in Music Block — jazz combo or big band horns, rock, pop or funk band, string quartet, choir, folk ensemble. Use whenever an example has three or more parts, or the user asks for an arrangement, a head, a chart, a section, a band or a choir."
    },
    "name": "ensemble-arranging",
    "plugin_release_skill_id": "pluginrsk_6aac59658dac819185cb2a3b5433d8a2"
  },
  {
    "description": "Compose melodies, licks, riffs, solos, bass lines and vocal lines for Music Block that sound like a musician played them rather than a scale generator. Use whenever composing any melodic line, and when a user says the result sounds robotic, mechanical or boring.",
    "interface": {
      "brand_color": null,
      "default_prompt": null,
      "display_name": "human-melodic-phrasing",
      "icon_large_url": null,
      "icon_small_url": null,
      "iconography": "pen",
      "short_description": "Compose melodies, licks, riffs, solos, bass lines and vocal lines for Music Block that sound like a musician played them rather than a scale generator. Use whenever composing any melodic line, and when a user says the result sounds robotic, mechanical or boring."
    },
    "name": "human-melodic-phrasing",
    "plugin_release_skill_id": "pluginrsk_6aac5965ba4c81918cb7d92df47fa8a4"
  },
  {
    "description": "Write Music Block parts for winds, brass, strings, voices, keyboards and drums that stay in each instrument's comfortable register and respect breath, hand and limb limits. Use when composing any non-fretted part, arranging for an ensemble or choir, or fixing a range warning.",
    "interface": {
      "brand_color": null,
      "default_prompt": null,
      "display_name": "instrument-ranges-and-idioms",
      "icon_large_url": null,
      "icon_small_url": null,
      "iconography": "code",
      "short_description": "Write Music Block parts for winds, brass, strings, voices, keyboards and drums that stay in each instrument's comfortable register and respect breath, hand and limb limits. Use when composing any non-fretted part, arranging for an ensemble or choir, or fixing a range warning."
    },
    "name": "instrument-ranges-and-idioms",
    "plugin_release_skill_id": "pluginrsk_6aac5965e2388191af038a0a8ebdb803"
  },
  {
    "description": "Write guitar, electric guitar, bass and ukulele parts (string/fret \"bars\" for Music Block) that a human can actually finger at the stated tempo. Use before composing any fretted lick, riff, exercise, bass line or chord voicing, and when fixing a playability warning.",
    "interface": {
      "brand_color": null,
      "default_prompt": null,
      "display_name": "playable-fretted-parts",
      "icon_large_url": null,
      "icon_small_url": null,
      "iconography": "code",
      "short_description": "Write guitar, electric guitar, bass and ukulele parts (string/fret \"bars\" for Music Block) that a human can actually finger at the stated tempo. Use before composing any fretted lick, riff, exercise, bass line or chord voicing, and when fixing a playability warning."
    },
    "name": "playable-fretted-parts",
    "plugin_release_skill_id": "pluginrsk_6aac59660e808191aa152d935bc8e92f"
  }
]

changed `/release/version`

BEFORE

"1.1.0"

AFTER

"1.2.0"

Full snapshot data

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    "app_templates": [],
    "description": "Music Block turns music ideas in ChatGPT into playable sheet music and TAB.\n\nAsk for guitar licks, piano voicings, bass lines, drum grooves, melodies, chord progressions, exercises, arrangements, or music theory examples, and Music Block renders them as engraved notation directly in the conversation.\n\nTry prompts like “give me 5 melodic minor licks over B7alt,” “write a walking bass line over a ii–V–I,” “show me jazz piano voicings with smooth voice leading,” or “arrange this melody for string quartet.”\n\nMusic Block supports guitar, bass, ukulele, piano and keyboards, drums, strings, brass, woodwinds, saxophones, and voices. Guitar, bass, and ukulele examples include TAB; keyboards use a grand staff; ensembles can contain up to eight parts.\n\nEvery example includes playback, so you can hear what you are learning, change the tempo, and mute or solo individual parts. You can also work with alternate tunings, extended-range guitars and basses, swing and shuffle rhythms, tuplets, chord symbols, and common guitar techniques such as bends, slides, hammer-ons, and pull-offs.\n\nUse Music Block for practice, teaching, songwriting, arranging, and exploring music theory with short, original examples created for your conversation.",
    "display_name": "Music Block",
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      "default_prompt": "Arrange my chorus (Am F C G) for a jazz sextet — trumpet, tenor sax, trombone, piano, bass, drums — 8 bars, medium swing",
      "default_prompts": [
        "Arrange my chorus (Am F C G) for a jazz sextet — trumpet, tenor sax, trombone, piano, bass, drums — 8 bars, medium swing",
        "Write an 8-bar funk riff in E minor for guitar, bass and drums with TAB — then we'll build the verse on it",
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      "long_description": "Music Block turns music ideas in ChatGPT into playable sheet music and TAB.\n\nAsk for guitar licks, piano voicings, bass lines, drum grooves, melodies, chord progressions, exercises, arrangements, or music theory examples, and Music Block renders them as engraved notation directly in the conversation.\n\nTry prompts like “give me 5 melodic minor licks over B7alt,” “write a walking bass line over a ii–V–I,” “show me jazz piano voicings with smooth voice leading,” or “arrange this melody for string quartet.”\n\nMusic Block supports guitar, bass, ukulele, piano and keyboards, drums, strings, brass, woodwinds, saxophones, and voices. Guitar, bass, and ukulele examples include TAB; keyboards use a grand staff; ensembles can contain up to eight parts.\n\nEvery example includes playback, so you can hear what you are learning, change the tempo, and mute or solo individual parts. You can also work with alternate tunings, extended-range guitars and basses, swing and shuffle rhythms, tuplets, chord symbols, and common guitar techniques such as bends, slides, hammer-ons, and pull-offs.\n\nUse Music Block for practice, teaching, songwriting, arranging, and exploring music theory with short, original examples created for your conversation.",
      "plugin_category_id": "education & research",
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      "screenshot_urls": [
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      "short_description": "Create sheet music & TAB",
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      "website_url": "https://musicblock.app"
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    "mcp_servers": [],
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          "default_prompt": null,
          "display_name": "ensemble-arranging",
          "icon_large_url": null,
          "icon_small_url": null,
          "iconography": "pen",
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        "description": "Compose melodies, licks, riffs, solos, bass lines and vocal lines for Music Block that sound like a musician played them rather than a scale generator. Use whenever composing any melodic line, and when a user says the result sounds robotic, mechanical or boring.",
        "interface": {
          "brand_color": null,
          "default_prompt": null,
          "display_name": "human-melodic-phrasing",
          "icon_large_url": null,
          "icon_small_url": null,
          "iconography": "pen",
          "short_description": "Compose melodies, licks, riffs, solos, bass lines and vocal lines for Music Block that sound like a musician played them rather than a scale generator. Use whenever composing any melodic line, and when a user says the result sounds robotic, mechanical or boring."
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        "description": "Write Music Block parts for winds, brass, strings, voices, keyboards and drums that stay in each instrument's comfortable register and respect breath, hand and limb limits. Use when composing any non-fretted part, arranging for an ensemble or choir, or fixing a range warning.",
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          "icon_large_url": null,
          "icon_small_url": null,
          "iconography": "code",
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SHA-256 of public snapshot: 1c0bb3b630d552558efbf345da081559fc8f8e53ed938f0951828fb7ebf2e261

Update to Music Block

Declared capabilities changed

Product description

Product description

Product description

Declared skills

Compare saved observations

changed /release/description

changed /release/id

changed /release/interface/default_prompt

changed /release/interface/default_prompts

changed /release/interface/long_description

changed /release/interface/screenshot_urls

changed /release/interface/short_description

changed /release/skills

changed /release/version

changed `/release/description`

changed `/release/id`

changed `/release/interface/default_prompt`

changed `/release/interface/default_prompts`

changed `/release/interface/long_description`

changed `/release/interface/screenshot_urls`

changed `/release/interface/short_description`

changed `/release/skills`

changed `/release/version`