Actually...according to me:
- The drums and the bass guitar are the very heart of the band.
DRUMS: They keep the rhythm of the song, the tempo of the song...the very beat of the song.
BASS: The bass is perhaps, the most important thing in a band. It keeps the melody full, fills the rhythm and deepens it...the bass guitar is a bridge between melody and rhythm.
I play a lead guitar and I'm a singer, but without those two instruments, you are going nowhere