Musical Notes

Musical Notes is a CLI tool to assist in the formation of scales, chords, and harmonic fields.

The entire application is based on a command called "musical-notes". This command has a subcommand related to each action that the application can perform, such as scales, chords, and harmonic fields.

Contents

• How to Install the Project
• How to use?
• Tech Stack
• Credits

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How to Install the Project

To install the project's CLI, we recommend using pipx for this installation:

pipx install musical-notes

Although this is only a recommendation! You can also install the project with your preferred package manager, such as pip:

pip install musical-notes

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How to use?

Scales

You can call the scales via the command line. For example:

musical-notes scale

Returning the degrees and notes corresponding to this scale:

┏━━━┳━━━━┳━━━━━┳━━━━┳━━━┳━━━━┳━━━━━┓
┃ I ┃ II ┃ III ┃ IV ┃ V ┃ VI ┃ VII ┃
┡━━━╇━━━━╇━━━━━╇━━━━╇━━━╇━━━━╇━━━━━┩
│ C │ D  │ E   │ F  │ G │ A  │ B   │
└───┴────┴─────┴────┴───┴────┴─────┘

Changing the scale tonic

The first parameter of the CLI is the tonic of the scale you wish to display. This way, you can change the returned scale. For example, the F# scale:"

musical-notes scale F#

Result in:

┏━━━━┳━━━━┳━━━━━┳━━━━┳━━━━┳━━━━┳━━━━━┓
┃ I  ┃ II ┃ III ┃ IV ┃ V  ┃ VI ┃ VII ┃
┡━━━━╇━━━━╇━━━━━╇━━━━╇━━━━╇━━━━╇━━━━━┩
│ F# │ G# │ A#  │ B  │ C# │ D# │ F   │
└────┴────┴─────┴────┴────┴────┴─────┘

Changing the key (PT-BR=tonalidade) of the scale

You can also change the key (PT-BR=tonalidade) of the scale! This is the second parameter of the command line. For example, the scale of D# major:"

musical-notes scale D# major

┏━━━━┳━━━━┳━━━━━┳━━━━┳━━━━┳━━━━┳━━━━━┓
┃ I  ┃ II ┃ III ┃ IV ┃ V  ┃ VI ┃ VII ┃
┡━━━━╇━━━━╇━━━━━╇━━━━╇━━━━╇━━━━╇━━━━━┩
│ D# │ F  │ G   │ G# │ A# │ C  │ D   │
└────┴────┴─────┴────┴────┴────┴─────┘

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Chords

Basic use:

musical-notes chord
┏━━━┳━━━━━┳━━━┓
┃ I ┃ III ┃ V ┃
┡━━━╇━━━━━╇━━━┩
│ C │ E   │ G │
└───┴─────┴───┘

Chord variations (Portuguese=Variações na cifra)

musical-notes chord C+
┏━━━┳━━━━━┳━━━━┓
┃ I ┃ III ┃ V+ ┃
┡━━━╇━━━━━╇━━━━┩
│ C │ E   │ G# │
└───┴─────┴────┘

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Harmonic Field

You can call the Harmonic Fields via the subcommand harmonic-field. For example:

musical-notes harmonic-field

┏━━━┳━━━━┳━━━━━┳━━━━┳━━━┳━━━━┳━━━━━━┓
┃ I ┃ ii ┃ iii ┃ IV ┃ V ┃ vi ┃ vii° ┃
┡━━━╇━━━━╇━━━━━╇━━━━╇━━━╇━━━━╇━━━━━━┩
│ C │ Dm │ Em  │ F  │ G │ Am │ B°   │
└───┴────┴─────┴────┴───┴────┴──────┘

NOTE:
By default, the parameters used are the tonic of C and the major harmonic field.

Changes in the harmonic fields

You can change the parameters of the tonic note and key (tonality).

musical-notes harmonic-field [TONIC] [KEY]

Change in the tonic of the field

An example with the harmonic field of E:

musical-notes harmonic-field E

┏━━━┳━━━━━┳━━━━━┳━━━━┳━━━┳━━━━━┳━━━━━━┓
┃ I ┃ ii  ┃ iii ┃ IV ┃ V ┃ vi  ┃ vii° ┃
┡━━━╇━━━━━╇━━━━━╇━━━━╇━━━╇━━━━━╇━━━━━━┩
│ E │ F#m │ G#m │ A  │ B │ C#m │ D#°  │
└───┴─────┴─────┴────┴───┴─────┴──────┘

Change in the tonality of the field

An example using the harmonic field of E in the minor tonality:

musical-notes harmonic-field E minor

┏━━━━┳━━━━━┳━━━━━┳━━━━┳━━━━┳━━━━┳━━━━━┓
┃ i  ┃ ii° ┃ III ┃ iv ┃ v  ┃ VI ┃ VII ┃
┡━━━━╇━━━━━╇━━━━━╇━━━━╇━━━━╇━━━━╇━━━━━┩
│ Em │ F#° │ G   │ Am │ Bm │ C  │ D   │
└────┴─────┴─────┴────┴────┴────┴─────┘

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More information about the CLI

To discover other options, you can use the --help flag:

musical-notes --help
                                                                       
 Usage: musical-notes [OPTIONS] COMMAND [ARGS]...

╭─ Options ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ --install-completion        [bash|zsh|fish|powershell|pwsh]  Install completion for the specified shell. [default: None]                               │
│ --show-completion           [bash|zsh|fish|powershell|pwsh]  Show completion for the specified shell, to copy it or customize the installation.        │
│                                                              [default: None]                                                                           │
│ --help                                                       Show this message and exit.                                                               │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Commands ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ chord                                                                                                                                                  │
│ harmonic-field                                                                                                                                         │
│ scale                                                                                                                                                  │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯

More information about subcommands

Information about subcommands can be accessed by using the --help flag after the parameter name. An example of using help on the harmonic fields:

musical-notes harmonic-field --help
                                                                       
 Usage: musical-notes harmonic-field [OPTIONS] [TONIC] [KEY]

╭─ Arguments ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│   tonic      [TONIC]  Harmonic field tonic note [default: c]                                                                                                                         │
│   key        [KEY]    Harmonic field key (PT-BR=tonalidade) [default: major]                                                                                                         │
╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Options ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ --help          Show this message and exit.                                                                                                                                          │
╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯

NOTE:
You can also use the main documentation to learn more about the project.

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Tech Stack

• Programming Languages:
  • Python
• CLI:
  • Typer
  • Rich
• Test:
  • Pytest
  • Pytest-cov
• Linters:
  • blue
  • isort
• Project management:
  • VSCode
    • .editorconfig extension
  • Poetry
  • taskipy
  • Git
  • GitHub Actions
• Documentation:
  • The Read Docs
  • mkdocs-material
  • mkdocstrings
  • mkdocstrings-python
  • mkdocs-macros-plugin
  • jinja2

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Credits

The project credits are to Eduardo Mendes Youtube channel. I followed the "Construindo um pacote Python do zero #CodaComigo" playlist to develop this project. However, I translated all the project to English.

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Rodrigo Leite da Silva