Harpers:

Since the Worldbreaker Calamity all peoples have been born with the ability to pluck at the threads of magic around them. Though this ability is innate, the knowledge and ability to use it with any sense of accuracy or precision is not. Harpers play the threads around them like a stringed instrument, plucking at the threads and causing them to vibrate and move in specific ways in order to create magical effects. In order to precisely do this, one must learn to push their quintessence outward to be able to feel the threads around them and then must be able to perform pinpoint movements in order to only touch the threads they are aiming for. Plucking at the weave has very similar effects to the vibrations caused by Callers but unless done with great precision can be much more discordant and to produce larger effects takes a great many movements and even greater precision. This leads to most practitioners honing their bodies before working toward great works of magic. This ability is also available to be used by Callers if they choose to learn to do so and can be combined with calling, though not many have achieved this level of mastery over the weave.