A key signature is a collection of every accidental found in a scale.
（調號是調式中所有變音記號的集合）
To demonstrate this, we will use the key of C Minor, which has three flats.
（我們用包含三個降音的C小調來演示一下）
Next, let's examine D-flat Major, which has five flats.
（下面我們看一下降D的大調音階，它有五個降號）
As you may have noticed, the flats are arranged in a special order.
（你可能會注意到，寫降號的順序是特定的）
B-flat is first, followed by E-flat, A-flat, D-flat, and G-flat.
（降B先寫，接下來是降E、降A、降D、降G）
The C-sharp, F-sharp, and G-sharp move into the key signature.
（把升C、升F、升G移到調號上）
Finally, let's try E Major, with four sharps.
（最後，我們來試一下有四個升號的E大調）
The F-sharp, G-sharp, C-sharp, and D-sharp move into the key signature.
（把升F、升G、升C、升D移到調號中去）
Sharps are arranged in the opposite order of flats.
（升號的順序和降號正好相反）
F-sharp comes first, followed by C-sharp, G-sharp, and D-sharp.
（先寫升F，然後是升C、升G、升D）
Next comes A-sharp, E-sharp, and finally B-sharp.
（然後是升A、升E、升B）
Use this chart to reference key signatures for both treble and bass clefs.
（這是在高音和低音譜號旁寫的調號）