1 flat - the "do" in the key of F is F; 2 flats - the "do" in the key of B flat is B flat; 3 flats - the "do" in the key of E flat is E flat;

4 flats - the "do" in A flat is A flat; 5 flats - the "do" in D flat is D flat; 6 flats - G flat The "do" in the key is G flat;

7 flats - the "do" in the key of C flat is C flat.

How to memorize the key of C flat:

Except for one flat which needs to be memorized, the "do" in the key of 2-7 flats is all on the penultimate flat. The specific explanation is as follows:

The key signature after the staff has 2 flats (B flat and E flat), so B flat is "do"; there are 3 flats (B flat, E flat, A flat), E flat is "do"; 4 flats (B flat, E flat, A flat, D flat) are D flats "do"; 5 flats (B flat, E flat, A flat, D flat, G flat), it means that D flat is "do"; 6 flats (B flat, E flat, A flat, D flat, G flat, C flat), it is G flat that is "do". (7 Flats are rarely used (B flat, E flat, A flat, D flat, G flat, C flat, F flat), that is, C flat is "do")

This is how to tune flats Go figure.

It is best to remember the common sense about the generation of these tones,

1. All the tones in music are generated according to the relationship of fifths. Our ancestors discovered this law very early, which is called "five degrees of mutual development".

2. Based on the key of C without any sharps or flats: Raise it up five degrees, and a new key will appear: the order of new keys is G-D-A-E-B-F sharp-C sharp;

Based on the key of C, lower it five degrees downward, and a new key will appear: the order of the new key is F-B flat-E flat-A flat-D flat-G flat-C flat.,

3. In the key signature of each ascending key, the order of the notes that are raised is: F C G D A E B;

In the key signature of each descending key, the order of the notes that are lowered is: B E A D G C F .