“Welcome to Derry” can refer to two different things, and the writer depends on which one is meant.
TV series
For the HBO Max prequel series It: Welcome to Derry (often shortened to Welcome to Derry), the show was developed and written by a team led by Andy Muschietti, Barbara Muschietti, and Jason Fuchs, with Stephen King’s original novel It as the underlying source.
Soundtrack track
If the question is about the soundtrack piece titled “Welcome to Derry” from It: Welcome to Derry, Vol. 1 (Soundtrack from the HBO Original Series) , that track is composed and produced by Benjamin Wallfisch.
