Busic a word to say a "Basic music theory".

— t-h2o

Note

In music, a note is the representation of a musical sound.

— wikipedia.com

What are the difference between 'do' 're' 'mi' and 'C' 'D' 'E'?
Look this table, there are many ways to say the same note.

wikipedia

Chord

What is a chord ?

A combination of three or more pitches sounded simultaneously.

— wordnik.com
wikipedia

Twelve-bar blues

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Static

Note MIDI

notes classical keyboard Note names and MIDI numbers

Piano

piano note guide

gamme

check the source code to generate this output

Major gamme of C -> C  D  E  F  G  A  B
Major gamme of G -> G  A  B  C  D  E  F#
Major gamme of D -> D  E  F# G  A  B  C#
Major gamme of A -> A  B  C# D  E  F# G#
Major gamme of E -> E  F# G# A  B  C# D#
Major gamme of B -> B  C# D# E  F# G# A#
Major gamme of F -> F# G# A# B  C# D# E#

Major gamme of C -> C  D  E  F  G  A  B
Major gamme of F -> F  G  A  Bb C  D  E
Major gamme of B -> Bb C  D  Eb F  G  A
Major gamme of E -> Eb F  G  Ab Bb C  D
Major gamme of A -> Ab Bb C  Db Eb F  G
Major gamme of D -> Db Eb F  Gb Ab Bb C
Major gamme of F -> F  Gb Ab Bb Cb Db Eb

minor gamme of A -> A  B  C  D  E  F  G
minor gamme of E -> E  F# G  A  B  C  D
minor gamme of B -> B  C# D  E  F# G  A
minor gamme of F -> F# G# A  B  C# D  E
minor gamme of C -> C# D# E  F# G# A  B
minor gamme of G -> G# A# B  C# D# E  F#
minor gamme of D -> D# E# F# G# A# B  C#

minor gamme of A -> A  B  C  D  E  F  G
minor gamme of D -> D  E  F  G  A  Bb C
minor gamme of G -> G  A  Bb C  D  Eb F
minor gamme of C -> C  D  Eb F  G  Ab Bb
minor gamme of F -> F  G  Ab Bb C  Db Eb
minor gamme of B -> Bb C  Db Eb F  Gb Ab
minor gamme of E -> Eb F  Gb Ab Bb Cb Db

Fur Elise

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Static

Fur Elise

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Static

openbook Jazz

openbook