Agent skill

Mc Style Jazz

by jtydhr88 in jtydhr88/music-composition-skills

Jazz as a style layer (爵士风格层) - what is specific to jazz and what is merely general music theory wearing a jazz hat.

MITAuto-check passed

Install Mc Style Jazz

skills CLI
$ npx skills add jtydhr88/music-composition-skills --skill mc-style-jazz -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jtydhr88/music-composition-skills mc-style-jazz --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jtydhr88/music-composition-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/music-composition/skills/mc-style-jazz .claude/skills/mc-style-jazz && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
mc-style-jazz
GitHub stars
154
Token cost
~2k tokens
SKILL.md length
601 words
Files
2
Skills in repo
29
Repo updated
First seen
Licence
MIT

At a glance

Jazz as a style layer (爵士风格层) - what is specific to jazz and what is merely general music theory wearing a jazz hat.

  • Works in 9 steps: 动笔前必填 → ★ 移植表:哪些可搬、哪些不可搬 → 和弦–音阶 → …
  • Arranging in a jazz idiom
  • SKILL.md covers 按任务读哪几节, 边界, 1. 动笔前必填 and 2. ★ 移植表:哪些可搬、哪些不可搬, plus 8 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Mc Style Jazz is an agent skill from jtydhr88/music-composition-skills. Jazz as a style layer (爵士风格层) - what is specific to jazz and what is merely general music theory wearing a jazz hat. Chord-scale theory and the avoid-note idea, melodic minor harmony and the interchangeability that makes altered dominants work, the diminished and whole-tone resources, comping and voicing conventions, the head-solos-head form, bebop phrasing and accent placement, what a jazz arrangement measurably does differently (smallest roster, fewest entry events in the corpus), and an explicit transfer table…

Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `reference.md`).

The repository describes itself as: Professional agent skills for composing and arranging popular music. The licence is MIT.

When your agent uses it

  • Arranging in a jazz idiom
  • A progression needs jazz reharmonization
  • Adding a solo section
  • Deciding whether a jazz device belongs in a pop track

Example prompts

  • “/mc-style-jazz”

Workflow steps

9 steps, taken from the step headings in SKILL.md.

  1. 动笔前必填
  2. ★ 移植表:哪些可搬、哪些不可搬
  3. 和弦–音阶
  4. Comping(伴奏)
  5. 曲式:Head–Solos–Head
  6. Bebop 的乐句法
  7. ★ 实测:爵士编曲与流行编曲的差别
  8. 与 ARR-SPEC 的字段对应
  9. 写完后必过

What it can do on your machine

Read from SKILL.md and the folder at commit 7adca0c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Mc Style Jazz loads about 2k tokens when it runs. Until then it costs about 204 tokens; SKILL.md has 601 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~204
When it runs · the whole SKILL.md, loaded when a task matches
~2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jtydhr88/music-composition-skills at commit 7adca0c, republished under its MIT licence (© jtydhr88). 601 words, ~2,013 tokens.

Download SKILL.mdSave it as .claude/skills/mc-style-jazz/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
mc-style-jazz
description
Jazz as a style layer (爵士风格层) - what is specific to jazz and what is merely general music theory wearing a jazz hat. Chord-scale theory and the avoid-note idea, melodic minor harmony and the interchangeability that makes altered dominants work, the diminished and whole-tone resources, comping and voicing conventions, the head-solos-head form, bebop phrasing and accent placement, what a jazz arrangement measurably does differently (smallest roster, fewest entry events in the corpus), and an explicit transfer table saying which of these survive outside jazz. Use when writing or arranging in a jazz idiom, when a progression needs jazz reharmonization, when comping, when adding a solo section, or when deciding whether a jazz device belongs in a pop track. 爵士、bebop、和弦音阶、变化属、二五一、swing、solo、comping。

爵士风格层(Jazz)

L3 风格层的每个 skill 都必须先回答一个问题:

这个风格里,哪些是"它特有的",哪些只是通用乐理穿了件这个风格的外套?

对爵士来说这个问题尤其尖锐,因为爵士乐理被广泛当作"高级乐理"来教—— 很多东西其实属于 mc-harmony,不属于本 skill。

按任务读哪几节

任务读
判断某个手法该不该搬到别的风格★ §2 移植表(先读这个)
写爵士和声§3 和弦–音阶
要变化属、要"外"的声音§3.3 旋律小调
配伴奏(comping)§4
排一首爵士曲的结构§5
写 solo / 即兴段§6
爵士编曲和流行编曲实测差在哪★ §7

边界

不归这里归哪
二五一、副属、裏和弦、张力音的通用用法mc-harmony §6、§7(★ 它们不是爵士专有的)
教会调式的定义mc-melody reference.md §2
swing 的量化比例怎么定mc-rhythm-section §2(百分比量化);本库不给毫秒值,swing 用比例写进 groove.quantize_policy
曲式的通用原理mc-form
乐器法mc-orchestration
完整的音阶/和弦/voicing 目录reference.md

1. 动笔前必填

必填问法
① 哪一支爵士swing / bebop / modal / bossa / fusion / 爵士味的流行。"爵士"不是一个风格。bossa 的律动、编制、换和弦时点在 mc-style-latin,这里只管它借走的和声
② 这是爵士还是"带爵士味"★ 决定 §2 移植表怎么用
③ 有没有即兴段有的话曲式完全不同(§5)
④ 编制规模★ 实测:爵士语料的 roster 中位数 22 轨,流行是 36——爵士是减出来的

2. ★ 移植表:哪些可搬、哪些不可搬

架构文档要求每个 L3 skill 必带这张表。这是防止风格污染的关键。

手法可搬吗说明
二五一、副属、裏和弦✅ 完全可搬它们本来就在 mc-harmony 里。J-POP、city pop 大量使用
张力音(9/11/13)✅ 可搬同上。但密度要降——流行里满编张力会变浑
和弦–音阶思维⚠️ 半搬作为选音依据可搬;作为即兴框架不可搬(流行歌没有即兴段)
旋律小调的四个可用和弦⚠️ 半搬单个使用(如 Lydian Dominant 当色彩)可搬;成串使用会立刻听成爵士
变化属(Altered)❌ 基本不可搬一进流行就是"爵士味",不是"高级"
减音阶 lick❌ 不可搬强烈的爵士语汇标记
Sus 和弦的爵士用法⚠️ 半搬★ F/G 这种分数属代理在 city pop 里是主力(→ mc-progressions reference §3)
Comping 的节奏❌ 不可搬它假设有一个即兴者需要留空间
Head–Solos–Head 曲式❌ 不可搬流行歌没有这个结构
Swing 律动⚠️ 半搬shuffle 在布鲁斯摇滚、R&B 里常见,但摇摆的比例不同
小编制、多留白✅ 可搬,而且该搬见 §7

★ 一条判据:

能不能搬,看它假不假设"有一个人正在即兴"。 假设了的(comping 节奏、solo 结构、外音的处理)不能搬; 没假设的(和声资源、编制哲学)能搬。


3. 和弦–音阶

3.1 核心思路

每个和弦对应一个(或几个)音阶,音阶决定可用音。 这是爵士乐理与古典功能和声最大的思维差异: 古典问"这个音要解决到哪",爵士问"这个和弦上哪些音能用"。

调式和弦
Ionian△7
Dorianm7
Mixolydian属7
Aeolianm7(自然小调色彩)
Locrianm7(♭5)(半减)
Lydian△7(♯11)
PhrygianSus♭9
3.2 避免音(Avoid Note)

不是"不能用",是"不能停在上面"。 最典型:大调 II-V-I 里,I△7 上的第 4 级(与三音半音冲突)。

★ Lydian 的用处就在这里:把 4 升成 ♯4,避免音消失, 所以 △7(♯11) 比 △7 更"开"。属七上的 ♯11 同理。

Levine 花了整章讲"不协和音的再认识"——爵士的历史就是不断把原本"不能用"的音收编进来。

3.3 ★ 旋律小调和声:爵士最核心的一块

旋律小调音阶有 7 个调式,其中四个给出爵士的标志性和弦:

调式和弦用处
第 1 级小大七(mMaj7)小调主和弦的爵士版
第 2 级Sus♭9
第 3 级Lydian Augmented
第 4 级Lydian Dominant(属7♯11)★ 最常用,也最容易搬到流行里
第 6 级半减(m7♭5)小调二五的 II
第 7 级★ 变化属(Altered)爵士声音的核心

★★ 可互换性(Interchangeability): 同一个旋律小调音阶生成的这些和弦可以互相替代。 这是"调性思维"——你想的不是单个和弦,是**"现在在哪个旋律小调上"**。

这一条是爵士与流行和声最大的分野。 流行和声是和弦的序列;爵士和声是音阶区域的序列,和弦只是它的切片。

3.4 其余资源
资源用处
减音阶配 dim7 与 V7♭9。★ 减七和弦是 V7♭9 的"伪装"——bebop 之后直接用 V7♭9 替代减和弦。以小三度重复的规律让一个 voicing 通用于多个 V7♭9
全音音阶配增和弦、V7♯5

3.9 ★ 布鲁斯和声:爵士、摇滚、R&B 共用的底座(陈云强)

本库以前只有"♭3 ♭5 ♭7 的擦音"一行。布鲁斯和声是一整套,页号出自《爵士和声》。

功能骨架不可动(p0192):前四小节主功能 I7,第五六小节下属 IV7,第九十小节终止式。 ★ 只有在布鲁斯里,I 级可以用属七当主功能(p0187)。

四种基础进行的演化(p0186–0187):只用 I 与 IV 的大三和弦 → 全部属七化 → 后四小节加 IV–V–I → 后四小节改 V–IV–I。 ★ 反向终止是布鲁斯独有的特征。

可以变化的三个位置(p0192–0193):和声节奏的弱位、功能段落之间的连接处、和弦与和弦之间。逐小节的常见变化(p0193–0195):

小节变化
2I7 → IV7
4I7 → III-7♭5(等于省根音的 I9)
5IV7 之后加 I7
6IV7 之后加 ♯IV°7(等于 IV7 加 ♭9 省根音),于是第 7 小节的 I7 用转位、五音作低音,让 IV → ♯IV° → I/5 的低音半音上行
8加什么由第 9 小节第一个和弦决定:是 II-7 就加 V7/II,是 IV7 就加 III-7♭5
9–10可变 II-7 – V7 – I7 – ♭VII7
11–12加副属或扩展属

★ 判定与曲式解绑(p0196):用了 I7、IV7 加布鲁斯音阶(1 ♭3 4 ♯4 5 ♭7)就是布鲁斯,不一定十二小节,八小节十六小节同样常见。

张力:I7、IV7、V7 的 11 音都不可用;I7 可把 ♭3 当 ♯9 用(p0189–0190)。 和声与音阶之间的小二度撞击正是布鲁斯的味道,与 mc-melody reference §4 的说法互证。 mc-style-rock-band 与 mc-harmony 都从这里取骨架。

Show full SKILL.md (237 more words)Show less

4. Comping(伴奏)

Comping 的全部要义是:为即兴者留空间。

原则说明
不要填满★ 这是它与流行伴奏最大的差别。流行伴奏在织体里占一个稳定的位置;comping 进进出出
回应而非铺垫听即兴者刚拉了什么,做出反应
Voicing 省根音低音交给贝斯。三音和七音是骨架(guide tones)
Sus 和弦的排列Levine 有专节(p0064)——它是"不解决"的音响

★ 移植警告(§2):comping 的节奏不可搬到流行。 流行里没有即兴者,那些空隙会变成洞。


4.1 导音线:内声部怎么写(陈云强 p0093–0096)

§4 说三音七音是骨架,这一节给做法。

特征音:七和弦的三音与七音;六和弦是三音与六音;减七、半减、增七这类五音有变化的和弦,五音也是特征音。

连接规则:根音走五度、四度、三度时,作 3 → 7 或 7 → 3;根音级进、三度或不动时,作 3 → 3 或 7 → 7 同向移动(三度时两种都可选)。

四种调整,防止线条单调或声部太高太低:加入根音或五音(必要时加可用扩展音);和弦持续时作八度跳进;和弦持续时把三音与七音对调;一段和声结束后重新安排起始音。

★ 它不只是爵士的:这就是一条内声部或对位线的写法,写副旋律同样能用。All The Things You Are 的旋律主要就由导音线构成。 mc-counterpoint §3 讲相对运动,这里讲选音。

5. 曲式:Head–Solos–Head

Head(主题,一遍或两遍)
  → Solo 1(按 head 的和声循环若干遍)
  → Solo 2 …
  → (4s / 8s:与鼓手交换乐句)
  → Head(再来一遍)
  → 尾(tag / 渐弱 / 定型结尾)

★ 与流行曲式的根本差别:

  • 流行的结构是"内容的序列"(主歌讲这个,副歌讲那个)
  • 爵士的结构是"同一个和声循环被走很多遍",内容由即兴者每遍填充

所以 form[].bars 在爵士里的含义不同: 它是"一遍 chorus 有多少小节"(32 小节 AABA 是标准),不是"这一段多长"。

常见 head 形式:AABA(32 小节)、ABAC、12 小节布鲁斯。 现成曲目见 。


6. Bebop 的乐句法

来自 Valerio:

要素要点
和声基础延伸音(Extensions)+ 变化音(Alterations)
互锁三和弦与七和弦用上方结构三和弦去表达复杂和弦
和声–旋律即兴即兴线条同时是和声的陈述
节奏—
乐句(Phrasing)—
重音(Accents)★ bebop 的标志之一是重音落在反拍
轮廓(Contour)—

历史脉络:Ragtime → Blues → Swing → Bebop。 ★ 知道这条脉络有用,因为**"爵士"这个词在不同年代指的是不同的音乐**(§1①)。


7. ★ 实测:爵士编曲与流行编曲的差别

Cambridge-MT 语料,jazz-acoustic 10 首 vs 其余:

指标jazz-acousticpoprockhiphop-rnb
roster 规模(中位)★ 22 轨363037
段落数(中位)910109
开场就在场的乐器比例16%21%8%24%
中途进场的乐器数★ 20292626
提前退场的乐器数★ 10161828

三条可靠的读法:

  1. ★ 爵士的编制明显更小(22 vs 36) —— 部分因为它是同期录音,没有那么多叠录。 这条可以搬:小编制 + 每件都有事做,是爵士能给流行的最有价值的东西
  2. ★ 爵士的进出场事件也最少(20 进 / 10 退) —— 它的变化不靠"换编制",靠同一组人演奏内容的变化
  3. hiphop-rnb 的提前退场最多(28) ——它是最"减法"的风格

⚠ 不可靠的读法:BPM。检测出来 jazz 中位 117、范围 74–162, 但 beat tracking 在摇摆律动上有已知的倍频误判。不要引用这个数。


8. 与 ARR-SPEC 的字段对应

字段本 skill
meta.style_layermc-style-jazz
form[].harmony§3。★ 爵士里和声是主角,级数要写全
form[].bars★ §5——含义是"一遍 chorus 的长度"
arrangement.roster§7——目标 20 轨出头,不是 36
groove.feelswing16 / shuffle
render.*.style_prompt写清是哪一支爵士(§1①),不要只写 jazz

9. 写完后必过

  • 说清了是哪一支爵士,不是笼统的 "jazz"
  • 查过 §2 移植表;从爵士搬出去的手法都在"可搬"列
  • 往爵士里搬东西时,检查过它会不会破坏"有人在即兴"这个前提
  • 和声写的是音阶区域的思维,不只是和弦序列(§3.3)
  • 编制明显小于流行(目标 20 出头,不是 36)
  • 有即兴段的话,form[].bars 的含义标注清楚了
  • Comping 留了空隙,没有填满
  • 没有把变化属/减音阶 lick 搬进流行歌(除非刻意要爵士味)

附:来源

  • Mark Levine《The Jazz Theory Book》—— §3 全部主干(和弦–音阶、避免音、旋律小调和声与可互换性、减音阶、全音音阶)。
  • Valerio《Bebop》——§6。
  • Fake Book——曲目与 head 形式。
  • Jazz Guitar Groove—— CAGED、音阶模式、4 音符模进、半音修饰、三连音 pattern。 ★ 这本原被误归到 mc-rhythm-section,实际是即兴词汇,归本 skill 与 mc-melody。
  • 实测数据:仓库实测语料(jazz-acoustic 10 首)。
  • 爵士和声钢琴实操

© jtydhr88, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in plugins/music-composition/skills/mc-style-jazz of jtydhr88/music-composition-skills.

  • SKILL.md
  • reference.md

Open the folder on GitHubat commit 7adca0c

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    garden-co/classic-jazz

    A skill your agent uses when building, debugging, or optimizing Jazz applications.

    2.5k GitHub stars~1.7k tokensUpdated 1 mo ago
    DevelopmentAuto-check passed
  • Jazz Schema Design

    garden-co/classic-jazz

    Design and implement collaborative data schemas using the Jazz framework.

    2.5k GitHub stars~3.2k tokensUpdated 1 mo ago
    DatabasesAuto-check passed
  • Jazz Permissions Security

    garden-co/classic-jazz

    A skill your agent uses when designing data schemas, implementing sharing workflows, or auditing access control in Jazz applications.

    2.5k GitHub stars~2.9k tokensUpdated 1 mo ago
    Backend & APIsAuto-check passed
  • Cwb Jazz

    jaychempan/coding-with-beat

    Play jazz, smooth jazz, or bossa nova music. An agent skill from jaychempan/coding-with-beat.

    113 GitHub stars~242 tokensUpdated 3 mo ago
    Productivity & AutomationAuto-check passed

More from jtydhr88/music-composition-skills

All 29 skills in this repo
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  • Mc Development

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  • Mc Form

    jtydhr88/music-composition-skills

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Questions about Mc Style Jazz

What does Mc Style Jazz do?

Jazz as a style layer (爵士风格层) - what is specific to jazz and what is merely general music theory wearing a jazz hat. Mc Style Jazz is an agent skill from jtydhr88/music-composition-skills. Jazz as a style layer (爵士风格层) - what is specific to jazz and what is merely general music theory wearing a jazz hat.

When should I use Mc Style Jazz?

Mc Style Jazz fits situations like: arranging in a jazz idiom; A progression needs jazz reharmonization; adding a solo section; deciding whether a jazz device belongs in a pop track.

How do I install Mc Style Jazz in Claude Code?

Run `npx skills add jtydhr88/music-composition-skills --skill mc-style-jazz -a claude-code`. Or copy the skill folder (plugins/music-composition/skills/mc-style-jazz in jtydhr88/music-composition-skills) into .claude/skills/mc-style-jazz in your project. Claude Code loads it when a task matches its description.

How do I install Mc Style Jazz in Codex?

Run `npx skills add jtydhr88/music-composition-skills --skill mc-style-jazz -a codex`. Or copy the skill folder (plugins/music-composition/skills/mc-style-jazz in jtydhr88/music-composition-skills) into .agents/skills/mc-style-jazz in your project. Codex loads it when a task matches its description.

Can I use Mc Style Jazz in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jtydhr88/music-composition-skills --skill mc-style-jazz -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mc-style-jazz, .gemini/skills/mc-style-jazz, .github/skills/mc-style-jazz and .opencode/skills/mc-style-jazz in your project.

What does Mc Style Jazz need to run?

SKILL.md names no scripts, command-line tools or credentials: Mc Style Jazz is instructions for the agent only.

Does Mc Style Jazz access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Mc Style Jazz safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Mc Style Jazz use?

Mc Style Jazz is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Mc Style Jazz use?

About 2k tokens (SKILL.md is roughly 8.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Mc Style Jazz?

Skills that share tags, products or a category with Mc Style Jazz: Jazz Performance (garden-co/classic-jazz, 2.5k stars), Jazz Testing (garden-co/classic-jazz, 2.5k stars), Jazz UI Development (garden-co/classic-jazz, 2.5k stars) and Jazz Schema Design (garden-co/classic-jazz, 2.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Mc Style Jazz?

jtydhr88 (a GitHub user) maintains it in jtydhr88/music-composition-skills, which has 154 GitHub stars. The repository holds 29 skills in this directory. The repository was last updated on September 22, 2026.

Source: jtydhr88/music-composition-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.