play/pause Music.app on Mac when running

xcode-music-pause.sh

#!/bin/zsh

musicAppOpen=`osascript -e 'tell application "System Events" to (name of processes) contains "Music"'`

rm -f "/tmp/xcode-itunes.txt"
if [ $musicAppOpen = 'true' ]; then
	musicState=`osascript -e 'tell application "Music" to player state as string'`
	if [ $musicState = 'playing' ]; then
		echo 'play' > '/tmp/xcode-itunes.txt'
		osascript -e 'tell application "Music" to pause'
	fi
fi

xcode-music-play.sh

#!/bin/zsh

musicAppOpen=`osascript -e 'tell application "System Events" to (name of processes) contains "Music"'`

if [[ $musicAppOpen = 'true' && -f "/tmp/xcode-itunes.txt" ]]; 
then
	osascript -e 'tell application "Music" to play'
fi

Simple shell scripts for pausing your music if playing when running app from Xcode, and unpausing when app finishes running.

If Music.app isn't open or you're not playing any music, the scripts won't attempt to unpause.

INSTALLATION

1. Save somewhere where you keep scripts, e.g. ~/bin and chmod +x them.
2. In Xcode, go to Xcode > Behaviors > Edit Behaviors...
3. In left-hand column, scroll down to the "Running" section and click "Starts" (e.g. when running starts)
4. In right-hand column, scroll down to "Run", choose "Choose Script..." and choose Xcode-music-pause.sh
5. repeat steps 3 and 4 for "Completes" in the "Running" section and choose "Xcode-music-play.sh"

the first time you run it, you will have to allow it permission but after that you're golden.