[cavedude]

groups.cpp doesn't matter, the problem is in spells.cpp, that's where the final above all be all check is. The code looks like:

#ifdef GROUP_BUFF_PETS
						if (GetPet())
							GetPet()->BardPulse(spell_id, this);
#endif
					}
				}
			}
			else {
				mlog(SPELLS__BARDS, "Bard Song Pulse: spell %d, Group target without group. Affecting caster.", spell_id);
				BardPulse(spell_id, this);
#ifdef GROUP_BUFF_PETS
				if (GetPet())
					GetPet()->BardPulse(spell_id, this);
#endif
			}
			break;
		}
	}

Meaning all songs will land on every pet all the time. I'm going to add a check for charmed pets, but not for Pet Affinity for now. If somebody knows otherwise, please let me know.