As much for my own reference (Internet searches really let me down for stuff like this), here are some tables about music notation/ theory. From this you can find out the key a piece of music is in — look up the sharps and flats then decide if it’s major or minor by playing the major or minor chord.
The first is a table of all the major keys and relative minor keys for music. There are 24 varieties, but the minor share key signatures with major:
Minor Key | Major Key | b | # | Key Signature |
rel F min | Ab mjor | 4 | – | b b b b |
rel F# min | A mjor | 3 | # # # | |
A min | rel C mjor | 0 | 0 | – |
Bb mjor | 2 | – | b b | |
Bb min | rel Db mjor | 5 | – | b b b b b |
rel G# min | B mjor | – | 5 | # # # # # |
B min | rel D mjor | – | 2 | # # |
rel A min | C mjor | 0 | 0 | – |
C min | rel Eb mjor | 3 | – | b b b |
C# min | rel E mjor | – | 4 | # # # # |
rel Bb min | Db mjor | 5 | – | b b b b b |
rel B min | D mjor | – | 2 | # # |
D min | rel F mjor | 1 | – | b |
D# min | rel F# mjor | – | 6 | # # # # # # |
rel C# min | Eb mjor | 3 | – | b b b |
Eb min | rel Gb mjor | 6 | – | b b b b b b |
rel C# min | E mjor | – | 4 | # # # # |
E min | rel G mjor | – | 1 | # |
F mjor | 1 | – | b | |
F min | rel Ab mjor | 4 | – | b b b b |
rel D# min | F# mjor | – | 6 | # # # # # # |
F# min | rel A mjor | – | 3 | # # # |
rel Eb min | Gb mjor | 6 | – | b b b b b b |
rel E min | G mjor | – | 1 | # |
G min | rel Bb mjor | 2 | – | b b |
G# min | rel B mjor | – | 5 | # # # # # |
To get my files to organise themselves properly, I found that the more usual maj – min abbreviations were no good. After a bit of experimentation I found that removing the “a” from major was best. This orders this properly and makes things easily identifiable: Bb min/ Bb mjor as opposed to Bb maj/ Bb min.
Anyway, that’s all the keys, major and minor. In terms of key signatures (which indicate the notes you have to play), it simplifies down to just 12 varieties:
This is probably the one to try to learn, and then, later, learn associations to minor keys.
Major Key | Key Signature |
Ab | b b b b |
A | # # # |
Bb | b b |
B | # # # # # |
C | – |
Db | b b b b b |
D | # # |
Eb | b b b |
E | # # # # |
F | b |
F# | # # # # # # |
Gb | b b b b b b |
G | # |
I have songs in every key in my MP3 collection, and I would rather play by key than by beats per minute. MediaMonkey lets you customise, but I just use the “Mood” category to put in the key. It’s then a cinch to organise by this column, and I get a list of songs from the lowest key to the highest!
CHORDS
Major Chords
Ab | Ab C Eb |
A | A C# E |
Bb | Bb D F |
B | B D# F# |
C | C E G |
Db | Db F Ab |
D | D F# A |
Eb | Eb G Bb |
E | E G# B |
F | F A C |
F# | F# A# C# |
Gb | Gb Bb Db |
G | G B D |
Of course, it is easy to make a major triad chord into a minor one — always just drop the third one semitone. In other words, drop the middle note of the triad down by one fret…
The second last chord when the third is dropped, gives a Bbb result — that’s just a technicality. Dropping Bb one fret is obviously A. So play A for a flattened Bb/A# or Bbb.
Hope this is useful!
- See also: Pitch shifting