logicpro

name	logicpro
description	AX-first automation for Logic Pro — transport, tracks, tempo, mixer, and view controls

Logic Pro Automation

Connect

connect_app({ name: "Logic Pro" })

Backends

• Primary: Accessibility automation (menu bar, transport, tracks, mixer, view toggles)
• Prefer menu bar actions over keyboard shortcuts — shortcuts steal focus and can misfire

Layout

Logic Pro's main window has these regions (top to bottom, left to right):

1. Control Bar (top) — transport buttons, LCD display (tempo/time sig/key), view toggles
2. Inspector (left panel) — Region and Track properties, channel strip
3. Tracks Area (center) — timeline with track headers and regions
4. Editors/Mixer (bottom, toggled) — Piano Roll, Audio Editor, Mixer, etc.

Key Elements

Menu Bar (preferred for actions)

Use select_menu_item instead of keyboard shortcuts — it's a single atomic call via System Events, no focus stealing.

select_menu_item({ app: "Logic Pro", menuPath: ["Track", "New Audio Track"] })

Menu	Item	Notes
Track	New Audio Track	Opens track creation dialog
Track	New Software Instrument Track	Opens track creation dialog
Track	New Session Player SI Track...	Opens track creation dialog
Track	Delete Track
Track	Rename Track
File	Bounce Project...	Cmd+B equivalent
File	Save	Cmd+S equivalent
Edit	Undo	Cmd+Z equivalent

Transport Controls

Element	Role	Query
Play	checkbox	[{role:'checkbox', title:'Play'}]
Stop	button	[{role:'button', title:'Stop'}]
Record	checkbox	[{role:'checkbox', title:'Record'}]
Cycle	checkbox	[{role:'checkbox', title:'Cycle'}]
Count In	checkbox	[{role:'checkbox', title:'Count In'}]
Metronome	checkbox	[{role:'checkbox', title:'Metronome Click'}]
Solo	checkbox	[{role:'checkbox', title:'Solo'}]
Replace	checkbox	[{role:'checkbox', title:'Replace'}]
Tuner	checkbox	[{role:'checkbox', title:'Tuner'}]

LCD Display

Element	Role	Query
Tempo	slider	[{role:'slider', index:2}] inside the LCD group
Time Signature	popup	[{role:'popup', title:'4/4'}] (value changes)
Key	popup	[{role:'popup', titlePattern:'Major|Minor|Dorian'}]
Display Mode	popup	[{role:'popup', title:'Beats & Project'}]

View Toggles (Control Bar, right side)

All are checkboxes with value "0" (hidden) or "1" (shown):

Toggle	Query
Library	[{role:'checkbox', title:'Library'}]
Inspector	[{role:'checkbox', title:'Inspector'}]
Smart Controls	[{role:'checkbox', title:'Smart Controls'}]
Mixer	[{role:'checkbox', title:'Mixer'}]
Editors	[{role:'checkbox', title:'Editors'}]
List Editors	[{role:'checkbox', title:'List Editors'}]
Loop Browser	[{role:'checkbox', title:'Loop Browser'}]
Browsers	[{role:'checkbox', title:'Browsers'}]

Gotchas

1. Transport buttons (Play, Record, Cycle, etc.) are checkboxes, not buttons — they toggle on/off. Stop is the only button.
2. The tempo is a slider (label: "Tempo", min: 5, max: 990). Use fill to set it — under the hood this uses AXIncrement/AXDecrement in steps of ~10, so the final value may overshoot slightly.
3. AXSetValue on Logic Pro sliders does NOT set the absolute value — it just increments by 1. Always use fill which handles this correctly via AXIncrement/AXDecrement.
4. Many channel strip controls in the Inspector are disabled by default — they become enabled when the track is selected and the inspector section is expanded.
5. "New Track" menu items open a dialog — after clicking the menu item, you may need to interact with the dialog to finalize track creation.
6. The Screensets menu uses numbers (1-9) as menu bar items — don't confuse with regular menus.

Workflows

Add a new audio track

select_menu_item({ app: "Logic Pro", menuPath: ["Track", "New Audio Track"] })

Play/Stop a project

app.checkbox("Play").click()
# or app.button("Stop").click()

Set tempo to 140 BPM

app.locator({ role: 'slider', index: 0 }).fill("140")

Bounce project

select_menu_item({ app: "Logic Pro", menuPath: ["File", "Bounce Project..."] })

Toggle mixer view

app.checkbox("Mixer").click()

Runnable Scripts

• transport.mjs — control transport (play, stop, record, toggle metronome/cycle)
• set-tempo.mjs — set project tempo
• add-track.mjs — add a new track via menu