Bardic Concerto

Bonus Action expends 1 Bardic Inspiration as spell slot
AOE/DOT (60ft/30ft radius) circle with self as the center.
Until the spell ends, you deal extra damage to the target whenever you hit it with an attack.
Damage Type:TBD {Force, Psychic,Thunder}

Choose an effect for allies and enemies from the list below 
{have advantage/disadvantage on attack rolls}
{have advantage/disadvantage on a chosen saving throw type

Damage Scaling With Character Level (# of Dice) and Inspiration Die (Type of Dice)
LvL 1-2 1d6
LvL 3-4 2d6
LvL 5-6 2d8
LvL 7-8 3d8
LvL 9 4d8
LvL 10-12 4d10
LvL 13-14 5d10
LvL 15-16 5d12
LvL 17-18 6d12
LvL 19-20 6d12 + Superior Inspiration (activates when an enemy hits 0 hit points while under the effect of Bardic Concerto you gain 1 inspiration)