The Komuro Progression

The Komuro progression is named after Tetsuya Komuro (小室哲哉), one of the most influential producers in Japanese pop music history. During the 1990s, Komuro dominated the Japanese charts with acts like TM NETWORK, globe, and numerous solo artists, and his signature harmonic language became so ubiquitous that it earned his name.

In Roman numeral analysis, the Komuro progression is:

\[\text{VI} \to \text{IV} \to \text{V} \to \text{I}\]

or equivalently 6-4-5-1 (using scale-degree shorthand). In the key of C major, this spells out:

Degree	Chord
VI	Am
IV	F
V	G
I	C

The progression starts on the relative minor (vi), giving it a melancholic or wistful opening before resolving through the subdominant and dominant back to the tonic. This minor-start, major-resolve arc is a big part of why it feels so emotionally satisfying — it creates tension from sadness and releases into brightness.

Try it yourself — click the play button on any progression below to hear how it sounds, or click individual chords to explore:

小室进行（Komuro progression）得名于小室哲哉，日本流行音乐史上最具影响力的制作人之一。在 1990 年代，小室以 TM NETWORK、globe 以及众多 solo 歌手统治了日本音乐排行榜，他标志性的和声语言变得如此无处不在，以至于以他的名字命名。

用罗马数字分析，小室进行为：

\[\text{VI} \to \text{IV} \to \text{V} \to \text{I}\]

等价地写作 6-4-5-1（级数简写）。在 C 大调中，具体为：

级数	和弦
VI	Am
IV	F
V	G
I	C

该进行从关系小调（vi）开始，带有忧郁或怀旧的色彩，然后经由下属和属解决回主和弦。这种从小调开始、大调解决的弧线正是它听起来如此令人满足的重要原因——它从悲伤中制造张力，再释放为明朗。

试试看——点击下方任意进行的播放按钮来听听效果，或点击单个和弦来探索：

Several harmonic features make 6451 exceptionally effective:

1. Smooth voice leading. The bass line (A → F → G → C in C major) moves by thirds and steps, creating a natural, singable bass motion without large leaps.

2. Strong cadential resolution. The V → I at the end is the most fundamental cadence in tonal music. By placing it at the tail of the loop, every repetition ends with a satisfying resolution.

3. Modal ambiguity. Starting on vi blurs the line between the relative minor and major key. The listener isn’t sure whether the passage is “sad” or “happy” until the resolution — this ambiguity is emotionally compelling.

4. Endless loopability. The I at the end connects smoothly back to vi (they share two common tones in triad voicing: C-E in C major and A-C-E in A minor), making the progression cycle seamlessly.

几个和声特征使 6451 格外有效：

1. 平滑的声部进行。 低音线（C 大调中 A → F → G → C）以三度和级进移动，形成自然、可歌唱的低音运动，没有大跳。

2. 强烈的终止式解决。 末尾的 V → I 是调性音乐中最基本的终止式。将它放在循环的尾部，每次重复都以令人满足的解决结束。

3. 调式模糊性。 从 vi 开始模糊了关系小调和大调之间的界限。听者在解决之前无法确定这段音乐是”悲伤”还是”欢快”——这种模糊在情感上极具吸引力。

4. 无限可循环性。 末尾的 I 平滑地连接回 vi（在三和弦排列中共享两个公共音：C 大调的 C-E 和 A 小调的 A-C-E），使进行无缝循环。

A common and equally powerful variant replaces the final tonic (I) with iii:

\[\text{VI} \to \text{IV} \to \text{V} \to \text{iii}\]

In C major: Am → F → G → Em.

This is the 6453 progression. By ending on iii instead of I, the progression avoids full resolution. The iii chord (Em in C major) is the mediant — it shares two notes with the tonic triad (E and G out of C-E-G) but withholds the root, creating a feeling of suspended arrival. You expect home, but you get something close-yet-not-quite.

This makes 6453 particularly effective for:

• Verses that want to maintain forward momentum without resolving
• Transitions between sections, where full resolution would kill the energy
• Melancholic or bittersweet passages, where the listener is denied the emotional “landing”

The iii → vi connection (Em → Am, a motion by step in the bass) is also very smooth, so the loop remains seamless.

一个常见且同样强大的变体将最后的主和弦（I）替换为 iii：

\[\text{VI} \to \text{IV} \to \text{V} \to \text{iii}\]

在 C 大调中：Am → F → G → Em。

这就是 6453 进行。以 iii 而非 I 结束，进行避免了完全解决。iii 和弦（C 大调中的 Em）是中音——它与主三和弦共享两个音（C-E-G 中的 E 和 G），但隐去了根音，制造出悬而未决的到达感。你期待回家，但得到的是接近却不完全到达。

这使得 6453 特别适合：

• 想保持前进动力而不解决的主歌
• 段落之间的过渡，完全解决会消耗能量
• 忧郁或苦甜的段落，听者被拒绝了情感上的”着陆”

iii → vi 的连接（Em → Am，低音的级进运动）也非常平滑，因此循环仍然无缝。

Property	6451	6453
Final chord	I (tonic)	iii (mediant)
Resolution	Complete	Suspended
Emotional arc	Sadness → brightness	Sadness → bittersweet
Typical use	Choruses, hooks	Verses, bridges
Loop smoothness	vi–I share 2 notes	vi–iii move by step

In practice, many songs use both: 6453 in the verse to build tension, then 6451 in the chorus for the payoff. The shared first three chords (vi → IV → V) mean the transition between the two feels completely natural — only the last chord changes, but the emotional shift is dramatic.

属性	6451	6453
末尾和弦	I（主和弦）	iii（中音）
解决	完全	悬而未决
情感弧线	忧伤 → 明朗	忧伤 → 苦甜
典型用法	副歌、hook	主歌、桥段
循环平滑度	vi–I 共享 2 个音	vi–iii 级进

实践中，很多歌曲两者都用：主歌中用 6453 积蓄张力，副歌中用 6451 释放。前三个和弦（vi → IV → V）相同意味着两者之间的过渡完全自然——只有最后一个和弦改变，但情感上的转变却是戏剧性的。

The Komuro progression and its variants appear in countless J-pop and broader pop songs:

• Get Wild (TM NETWORK, 1987) — one of the earliest and most iconic uses, produced by Komuro himself
• LOVE LOVE LOVE (DREAMS COME TRUE, 1995) — classic 6451 in the chorus
• 残酷な天使のテーゼ (A Cruel Angel’s Thesis, 1995) — the Neon Genesis Evangelion opening theme uses variants of this progression
• First Love (宇多田ヒカル, 1999) — employs 6451 movement in key emotional moments
• Let It Be (The Beatles, 1970) — while not J-pop, the verse progression (C → G → Am → F, i.e., 1-5-6-4) is the retrograde of 6451, showing the universal appeal of these four chords
• もう少しだけ (Mou Sukoshi Dake, YOASOBI, 2021) — uses I → V → vi → IV in the intro/verse (a rotation of 6451), with a key change for the final chorus
• だから僕は音楽を辞めた (Dakara Boku wa Ongaku wo Yameta, Yorushika, 2019) — classic 6451 in the chorus, modulates up a half step for the final chorus
• 藍二乗 (Ai Nijou, Yorushika, 2021) — pentatonic melody over I → vi → IV → V, with extended chorus progressions

小室进行及其变体出现在无数 J-pop 和更广泛的流行歌曲中：

• Get Wild（TM NETWORK, 1987）——最早和最具标志性的使用之一，由小室本人制作
• LOVE LOVE LOVE（DREAMS COME TRUE, 1995）——副歌中经典的 6451
• 残酷な天使のテーゼ（残酷天使的行动纲领, 1995）——《新世纪福音战士》片头曲使用了该进行的变体
• First Love（宇多田光, 1999）——在关键情感时刻运用了 6451 的走向
• Let It Be（The Beatles, 1970）——虽然不是 J-pop，主歌进行（C → G → Am → F，即 1-5-6-4）是 6451 的逆行，展示了这四个和弦的普遍吸引力
• もう少しだけ（再多一点点, YOASOBI, 2021）——前奏/主歌使用 I → V → vi → IV（6451 的旋转），最终副歌转调
• だから僕は音楽を辞めた（所以我放弃了音乐, Yorushika, 2019）——副歌中经典的 6451，最终副歌升半音转调
• 藍二乗（蓝的平方, Yorushika, 2021）——五声音阶旋律配合 I → vi → IV → V，副歌带有扩展进行

The chords I, IV, V, and vi form a closed harmonic system that generates multiple famous progressions depending on the starting point and order:

Name	Progression	Example
Komuro	vi → IV → V → I	Get Wild
Pop-punk / Axis	I → V → vi → IV	Let It Be, No Woman No Cry
Royal Road (王道進行)	IV → V → iii → vi	A Cruel Angel’s Thesis (chorus)
Sad rotation	vi → V → IV → I	Various ballads

All four are rotations or permutations of the same four chords. The Komuro progression is simply one entry point into this incredibly versatile harmonic cycle — but its minor-first voicing gives it a distinctly Japanese emotional sensibility that has defined the sound of J-pop for decades.

和弦 I、IV、V 和 vi 构成一个封闭的和声系统，根据起始点和顺序生成多个著名进行：

名称	进行	示例
小室进行	vi → IV → V → I	Get Wild
Pop-punk / Axis	I → V → vi → IV	Let It Be, No Woman No Cry
王道進行	IV → V → iii → vi	残酷天使的行动纲领（副歌）
悲伤旋转	vi → V → IV → I	各类抒情曲

四者都是相同四个和弦的旋转或排列。小室进行不过是进入这个极其多功能的和声循环的一个入口——但它从小调开始的声部排列赋予了它独特的日式情感特质，定义了数十年来 J-pop 的声音。