All singer groups in their communities have a primary and second, and an apprentice each.
Loamling Seeds: A garden originally planted by the first generation of Skraeling Singers or first generation of Haelf Singers mixes. These tend to produce a super bountiful crop, and add or mix flavors from other plants, fruits, nuts, and vegetables – like Limes and lemons that are used in mixers; they have a sugary taste to them in addition to their normal tastes.
Singers that sing land plant fertility into abundance.
Singers that sing land animal fertility into abundance.
Root singing takes the entire community. For the Haelf Singers, they can only do it in the community they were born into, and it takes usually 6 generations before it has much effect at all.