Charm targetting

[Trollhide]

Yes. Unlike most bard songs that will run continuously until you cancel them, the charm song only activates for 1 "pulse" - once the song pulses on your target and charms the mob, you will at that time not be singing anything and can start another song. The mob will remain charmed for ~18s unless an early break occurs, regardless of whatever other songs (except invis) you sing in that time.