Not to be bias or anything but i personally own both yigit and
Manteel and really, neither are a full time piece, in any aspect unless your a Ghorn bard and all you do is sing ballad lol
Anyhow, i love my manteel, the -% on songcasting is just to good, plus it looks amazing, i like to pair it up with more +haste gear, for things like ballad that really cant be buffed by skill/chr ect.
But the price tag that comes with it prolly isnt worth it to the non-full time brd, so the choice is yours on what you can afford.