Morkus from Orkus
Wizard spells are very specific in the words, gestures and components that they require. Saying that an inscribed spell can surely be sung is like saying that surely those finger gestures can be replaced by flapping arms. Bards have their own spells that are sung and they learn them in a way that is closer to Sorcerer than Wizard. Innately.Bard are not just musicians, they're an magical tradition of their own. If a spell can be inscribed in a book then surely it can also be sung?