Traditional Korean musicians strongly dislike the claim that Trot originated from Gugak

The most significant characteristic of Gugak (traditional Korean music) is the existence of 3-beat rhythms and Jangdan (traditional rhythmic patterns).
In contrast, Trot is based on a 2-beat system
and follows the Yonanuki scale that came from Japan.
Enka, which developed as popular music in Japan, was introduced to Joseon;
at that time, as Gyeonggi Minyo singers debuted as popular singers,
Trot emerged as a blend that incorporated elements of the Gyeonggi Minyo vocal style.
This is why Gyeonggi Minyo singers adapted to Trot more quickly,
while singers of Seodo/Namdo Minyo or Pansori found it difficult to adapt.
In any case, because Gugak and Trot belong to different lineages,
traditional musicians do not particularly like calling Trot "traditional songs"
or claiming that it sits on the same spectrum as Gugak.
Song Ga-in, who debuted as a Trot singer, also
clearly distinguishes between "Pansori singer Cho Eun-sim" and "Trot singer Song Ga-in"
and utilizes different vocal techniques for each.