Question: What is the type of musical composition that was used by the Korean female band Isak N Jiyeon?
Sentence (from "Kenzie (songwriter)"): She has composed dozens of songs for S.M. label-mates including BoA, Isak N Jiyeon, Super Junior, The Grace, TVXQ, Girls' Generation, SHINee, f(x), EXO, Red Velvet and NCT.
Relevant evidence: No