Helper tool for calculating scales for Teenage Engineering Pocket Operator PO-33/133 & PO-35/137 series.

I heard you like Pocket Operators, so I made Pocket Scale Calculator for your Pocket Operator.

This console app is a helper tool for calculating scales for Teenage Engineering Pocket Operator PO-33/133 & PO-35/137 series. It was inspired by https://punkyv4n.me/po-33-scale-app, but I wanted to make an ancient-looking desktop console version with pocket operator vibes, so here we are.

v0.9

• Added missing scales for po-35/137 models (Blues & Arab)
• Modified & added tests to handle additional poScale argument
• Updated default terminal profile to fit snap-off hanger option & resized window.

v0.8.2

• Reduced console window size to 41 chars (cut unused 3 chars space from the both sides).
• Reworked text output methods.

v0.8.1

• Added shortcuts for faster accessing scales.
• Added proper app tutorial text.

v0.8

• Added pocket operator scale app argument & option (Major / Minor)
• Added showing current po scale option on the first line of ascii-display
• Added support for po-35/137 Major scales: Major (Natural & Pentatonic) / Minor (Natural & Pentatonic) / Dorian / Lydian / Mixolydian / Locrian / Phrygian
• Added support for additional Minor scales: Mixolydian / Locrian / Phrygian
• Added 'scales' command & section for showing full list of supported scales

v0.7

• Added args tests
• Fixed minor arg-related defects
• Added 'exit' command & section

v0.6

• Added support for additional Minor scales: Major Pentatonic / Minor Pentatonic / Dorian / Lydian / Blues
• Added 'description' command & section
• Added 'about' command & section
• Added 'support' command & section
• Added 'options' command & section
• Added snap-off hanger app argument & option
• Added pocket operator model app argument & option

v0.5.1

• Fixed defect from https://punkyv4n.me/po-33-scale-app origin: showing wrong out of scale notes indexes for Major Harmonic.

v0.5

• Added init app arguments: root key & scale
• Added support for basic Minor scales: Major Natural / Major Harmonic / Minor Natural / Minor Harmonic

General info

Supported scales for PO-33/133 & PO-35/137 with Minor scale setting:

• Minor (Natural, Harmonic & Pentatonic)
• Major (Natural, Harmonic & Pentatonic)
• Blues
• Dorian
• Lydian
• Mixolydian
• Locrian
• Phrygian

Supported scales for PO-35/137 with Major scale setting:

• Major (Natural & Pentatonic)
• Minor (Natural & Pentatonic)
• Dorian
• Lydian
• Mixolydian
• Locrian
• Phrygian

PO-35/137 Blues & Arab scale settings are now supported as well.

To use app please type root key & desired scale (for example: F Blues) and press enter. Found scale name will appear on the second line of the little ascii po display. The scale itself will be shown on the ascii pocket operator note buttons. Sample key for the found scale will be shown on the third line of ascii po display. This is the sample note you should load into your PO to use this scale. Start your melody from the root note marked as [] and avoid using out of scale notes marked as --. Also, the first line of ascii pocket operator display is showing your current po scale setting. To change this and other settings such as 'snap-off hanger' option and PO model, please use 'options' command and follow menu tips.

That's it, have fun with your POs and never miss the right scale:-)

Dependencies

Prior to run this application you need to install java to your computer.

Run

Executable jar (pocket-scale-calculator.jar) is already compiled and could be found at the root of the project. However, if you need to compile a new jar please build the project and run ./gradlew test jar command. New jar will be saved to the build/libs directory.

To start application please run java -jar %pocket-scale-calc.jar file location% from your terminal (for example: java -jar /Users/bilbo_bogdans/Git/pocket-scale-calculator/build/libs/pocket-scale-calculator.jar). MacOS users also might set their terminal profile to have a shortcut for the app (please check 'pocket-scale-calculator example.terminal' file at the root of the project) with specific window resolution & settings set. To use shared profile you need to fix jar file location for the CommandString key, first.

Run with arguments

You can use additional arguments for starting the app with specific options:

1. root key note (default is A)
2. scale (default is Minor)
3. snap off hanger(y/n) (default is n)
4. PO model UI(33/35) (default is 33)
5. PO scale(major/minor/blues/arab) (default is Minor, option is applicable for PO-35/137 models only)

For example, starting the app with 'f majpe y 35 maj' arguments will start app with F Major Pentatonic setting, missing hanger option, PO-35 model UI and Major PO-35 device scale setting. Please make sure you separate arguments with space button.

App commands

• "", "help", "tutorial", "description" - print help section
• "options", "preferences" - access options menu
• "scales", "list" - print full list of supported scales & shortcuts section
• "about", "info" - print additional app info section
• "exit", "quit", "off", "terminate" - exit app