When/why did vocals-guitar-bass-drums become the vast majority of rock music group makeups? Even with the occasional keyboardist, bands are almost entirely the same instruments.

Question

When/why did vocals-guitar-bass-drums become the vast majority of rock music group makeups? Even with the occasional keyboardist, bands are almost entirely the same instruments.

In: 917

Answer 1

On the simple side, music is subbed into genres. Those genres are divided by how the music sounds. How it sounds comes from the instruments and vocals. It would make sense that within a genre, you would see a common instrument set.