Given that the composers for Young Justice are the same people who scored Justice League and Justice League Unlimited, one would certainly expect the existence of character cues. For instance, who could forget Green Arrow humming his theme in "To Another Show", or the dark reprise of Superman's theme that appeared in "Twilight" and "Destroyer"? Alas, I have so far identified only one recurring cue - the Justice League theme. It plays in situations where the entire league is involved. It starts with a repetitive arpeggio of fifths, and the melody descends by note from one octave. So far, I have identified instances in the following episodes: Fireworks - the League gathers at what's left of the Project Cadmus building; this is a slow rendition Revelation - the League arrives en masse at Bartholomew Bayou; this is a militaristic rendition Failsafe - Zatara calls the cave with sad news; this is a somber rendition Happy New Year - the League arrives simultaneously at New Orleans; this only includes the first part of the theme Have you folks identified any additional themes? Care to share? Full disclosure: This mirrors what I wrote on a blog post in the Young Justice wiki.