Granted SW’s vocals are not the highlight of the band’s talents but I disagree that they show no passion or emotion.
On the contrary, I think the vocals are complimentary to what turns out to be the common themes of many of SW’s songs. The themes of disenchantment, dissatisfaction and disillusionment tend to be very common. To me, the vocal style fits in perfectly with the subject matter.
When you listen to how the lyrics are being sung, there is no mistaking that the world is not perfect in the eye of the song’s protagonist. This isn’t Springsteen belting out “Born in the USA” in a loud strong voice and fooling most listeners into thinking that this is a proud nationalistic song as opposed to the protest song that it really seems to be.
The vocals in songs like “Lazarus”, “Trains”, “Where We Would Be”, and “Feel So Low” all come across as powerful to me because I hear the longing and uncertainty of the lyrics relating to personal relationships on the slide.
So often the lyrics tend to perceive a world that is becoming emotionless and homogenized. By design or by his voice’s own limitations, SW’s vocals tend to be sung in manner that conveys the bleakness of the themes being expressed.
“Sound of Muzak” - Soul gets squeezed out Edges get blunt / no-one cares No-one cares enough
“Shallow” - I don't remember did something in my past to create a hole? / This city drains me
“Blackest Eyes” - I got wiring loose inside my head
“Fear of A Blank Planet” - I'm stoned in the mall again terminally bored / How can be sure I'm here? The pills that I've been taking confuse me I need to know that someone sees that there's nothing left I simply am not here
“Even Less” - A body is washed up on a Norfolk beach He was a friend that I could not reach He thought I was cold but I understand But for the grace of god goes another man