Personaliza el sonido de inicio de tu Mac con Automator
Macでアプリケーションが起動していないのに音楽ファイルを再生する方法 / Inforati
How to Add a Startup Sound to Your Mac
GitHub - victordibia/soundplayer: Node.js wrapper for afplay(mac), aplay, mpg123, mpg321 audio players. Will run on mac and linux distros (including raspberry pi)
script - how to set afplay as default media player for wma files in mac OS - Ask Different
Afplay: Player Audio Files Via Terminal
TimeStamper - Media Computing Group - RWTH Aachen University