Command-Control-Arrow beeps (plays alert sound) in Lion
I've found a nice workaround.
Create the file ~/Library/KeyBindings/DefaultKeyBinding.dict with the following content:
&lt;=10.10 Yosemite (Found on GitHub/Atom)
{
    &quot;^@\UF701&quot; = &quot;noop:&quot;;
    &quot;^@\UF702&quot; = &quot;noop:&quot;;
    &quot;^@\UF703&quot; = &quot;noop:&quot;;
}

10.11 El Capitan through 10.15 Catalina (from Adobe/Brackets)
You'll need to create the ~/Library/KeyBindings directory first, and the @ and ^ characters are switched.
{
    &quot;@^\UF701&quot; = &quot;noop:&quot;;
    &quot;@^\UF702&quot; = &quot;noop:&quot;;
    &quot;@^\UF703&quot; = &quot;noop:&quot;;
}