I play a wizard that has the Gift of Mana AA and also the single player aura, and box a bard with him sometimes. With the bard melody going on, I have 6 song slots taken up, but I have 5/5 Mystical Transvergence or whatever it is that gives you extra buff slots, but the gift of magic buff is not going on my wizard at all. I don't know if this is a buff slots inssue (as I said, i have 5 ranks of extra slots, so I think I should have 11 song slots) or a stacking issue (running caster DPS aura, song of the orcslayer, a psalm, warsong, shield of songs, and regen.)
Thanks,
Flev