Cliche answer, but go with what you enjoy more, as they both have good use. If you end up doing an 8v8v8 Slaughter, then your melee (which I assume is your main) will be much more viable.

EDIT: a teammate of mine who plays bard says it isn't all it's cracked up to be there. Remember you need to maintain 15 yalms to do your full damage, and that isn't always possible without being singled out and killed.