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orca-c — A C-port of the ORCA live programming environment. ORCA is an esoteric programming language for crea

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the orca-c command: A C-port of the ORCA live programming environment. ORCA is an esoteric programming language for creating procedural sequencers. More information: <https://github.com/hundredrabbits/Orca-c>.

Solution

orca-c — A C-port of the ORCA live programming environment. ORCA is an esoteric programming language for creating procedural sequencers. More information: <https://github.com/hundredrabbits/Orca-c>.

Start ORCA with an empty workspace:

orca-c

Start ORCA and open a specific file:

orca-c {{path/to/file.orca}}

Start ORCA and set a specific tempo (defaults to 120):

orca-c --bpm {{beats_per_minute}}

Start ORCA and set the size of the grid:

orca-c --initial-size {{columns}}x{{rows}}

Start ORCA and set the maximum number of undo steps (defaults to 100):

orca-c --undo-limit {{limit}}

Show the main menu inside of ORCA:

<F1>

Show all shortcuts inside of ORCA:

<?>

Show all ORCA operators inside of ORCA:

<Ctrl g>

Code Snippets

Start ORCA with an empty workspace

orca-c

Start ORCA and open a specific file

orca-c {{path/to/file.orca}}

Start ORCA and set a specific tempo (defaults to 120)

orca-c --bpm {{beats_per_minute}}

Start ORCA and set the size of the grid

orca-c --initial-size {{columns}}x{{rows}}

Start ORCA and set the maximum number of undo steps (defaults to 100)

orca-c --undo-limit {{limit}}

Context

tldr-pages: common/orca-c

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