For
It proves authenticity and creativity.
Against
Many great performers interpret songs written by others.
Anonymous excerpts, translated where noted.
“Real musicians write their own music; real artists pen their own words.”
“The band wouldn't have gotten where they are if they couldn't write songs.”
“In making a song, vocals are a small part of the whole process.”
“Virtually every artist has other artists listed in the credits, sometimes for tweaking only a few lines.”