📚 Year 7 Cambridge Music: Formula & Theorem Quick Reference Handbook | 剑桥7年级音乐:公式定理速查手册
This handbook provides a concise collection of essential music theory formulas, rules and reference tables for Year 7 Cambridge Music students. Use it to quickly revise note values, scales, intervals, chords and more — all presented as easy‑to‑remember “formulas”.
本手册为剑桥7年级音乐学生整理了一份必备音乐理论公式、规则与速查表合集。内容涵盖音符时值、音阶、音程、和弦等,均以易记的“公式”形式呈现,方便快速复习。
1. Note Values and Rest Durations | 音符与休止符时值公式
A semibreve (whole note) lasts 4 beats in 4/4 time.
全音符在4/4拍中持续4拍。
A minim (half note) lasts 2 beats.
二分音符持续2拍。
A crotchet (quarter note) lasts 1 beat.
四分音符持续1拍。
A quaver (eighth note) lasts ½ beat.
八分音符持续½拍。
A semiquaver (sixteenth note) lasts ¼ beat.
十六分音符持续¼拍。
Dotted notes: a dot increases the note’s duration by half. Formula: dotted value = original value × 1.5.
附点音符:附点增加原音符时值的一半。公式:附点音符时值 = 原时值 × 1.5。
Rests have equivalent durations: semibreve rest, minim rest, crotchet rest, quaver rest and semiquaver rest.
休止符的时值与音符一一对应:全休止符、二分休止符、四分休止符、八分休止符、十六分休止符。
2. Time Signatures | 拍号公式
The top number tells how many beats are in a bar; the bottom number tells which note value gets one beat.
拍号上方数字表示每小节有几拍;下方数字表示以几分音符为一拍。
4/4 (common time, often written as C): 4 crotchet beats per bar.
4/4拍(常用拍号,常写作C):每小节4个四分音符拍。
3/4: 3 crotchet beats per bar — gives a waltz feel.
3/4拍:每小节3个四分音符拍,具有圆舞曲风格。
2/4: 2 crotchet beats per bar — typical march rhythm.
2/4拍:每小节2个四分音符拍,典型进行曲节奏。
6/8: compound duple metre, with two groups of three quavers per bar.
6/8拍:复二拍子,每小节由两组三连八分音符组成。
3. Major Scale Formula | 大调音阶公式
Every major scale follows the same pattern of whole tones (T or W) and semitones (S or H):
所有大调音阶都遵循相同的全音(T/W)与半音(S/H)模式:
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