Stargazing: Brave Song - Tada Aoi
Even within the depths of the darkest purgatory, the unity of your close friends can provide that glimmer of strength you need to push through.
The end of every Angel Beats! episode was faced with the gentle sounds of Tada Aoi's soothing melody, 'Brave Song'. Amidst all of the action and hard rock the series generally provided, this was always a great way to slow the pace right back down.