ii - V - I
在爵士中最常用的一组和弦进行。
Diatonic
Diatonic refers to notes that belong to a standard seven-note scale (like the major or natural minor scale), without adding extra accidentals (like sharps or flats) outside the key. For example, in C major, the diatonic notes are C-D-E-F-G-A-B. Anything outside that (like F♯ or B♭) is non-diatonic.
顺阶和弦：指的是属于某个七声音阶（例如大调或自然小调）的音符，不包含额外的升降音（例如 # 或 ♭）。比如 C 大调里的顺阶音阶音符是 C-D-E-F-G-A-B，像 F♯ 或 B♭ 这样的就是非顺阶音阶音。
Harmonic Minor | 和声小调
Melodic Minor | 旋律小调
Major 7th | 大七和弦
大七和弦的组成音为： 1-3-5-7，存在于大调I, IV, V级。
Minor 7th | 小七和弦
小七和弦组成音为: 1-♭3-5-♭7, 存在于大调ii，iii，vi级
Modal Scale
Dorian
大调中第二条调式
排列为: 1-2-♭3-4-5-6-♭7
Mixolydian
大调第五条调式
排列为: 1-2-3-4-5-6-♭7
Aeolian
大调第六条调式
排列为: 1-2-♭3-4-5-♭6-♭7
Natural Minor | 自然小调
以大调的第六级建立起来的小调，也称为Aeolian.
排列为: 1-2-♭3-4-5-♭6-♭7
Non-Functional Harmony
非功能性和声，和声的作用不再是功能性，即由属到主，副属到属的性质。而是作为色彩性存在。
Parent Scale
统领其下属的6个子音阶的音阶，比如Major Scale, Harmonic Minor Scale, Melodic Minor Scale。
Reverse Engineering
The process of analyzing and deconstructing a piece of music to understand how it was made, so you can learn from it, recreate it, or apply similar techniques in your own work.
it’s about examining your own output, often after the fact, to understand what you’ve done intuitively or unconsciously.
This often happens when a musician:
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Improvises or composes instinctively — without consciously thinking about theory or structure in the moment.
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Plays something they like — but doesn’t yet fully understand why it works.
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Goes back and analyzes it — to extract patterns, structures, or harmonic ideas they can refine, develop, or reuse.
Reverse engineering your own playing means allowing intuition to lead, then using analysis afterward to understand and develop the ideas that emerged.
Root
根音，在一个和弦中具有主音性质的音，但请与低音区分开，根音通常是最低的音，但在转位中它可以存在于其他音上方。低音（Bass Note）指最低的音
Triad Pairs
由两个三和弦组成的一组六音音阶。
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