The Rhythm Thief is Spark's manifesto to be original and need to consistently reinvent themselves as shown by their innovative new sound of the opening track by saying goodbye to the beat. It's an encapsulation of what Sparks career is about
How Do We Get To Carnegie Hall is about their hard work and desires to be pop star but despite how much effort, blood, sweat and tears. They essentially failed to achieve their goals partly due to their own originality.
What Are All These Bands Are Angry About is about Spark's bitterness that people who mimic and were influenced by their style ended up becoming more successful than they are. What are all those bands are angry about when Sparks themselves have more legitimate reason to be bitter and angry.
I Married Myself is about how their commitment to music makes them forego personal relationship. That Sparks are married to their music and will never be married.
Ride Em Cowboy - is about how every time there is a hint of success that could have springboard their career, their success is only fleeting.
My Baby Is taking me home - Is about the euphoria of meeting a new potential relationship that perhaps challenge their commitment to being married to their music.
Your Call's Very Important to Us. Please Hold - This song represents the deterioration of that personal relationship (as reflected by the caller flaking out on the phone call and putting him on hold and how much of a disaster it is on the protagonist).
Ugly Guys With Beautiful Girl - The failure of Sparks to be the pop stars they want to be led to financial problems and hence lead to relationship issues as the girlfriend left him for a richer more financially secure person.
Suburban Homeboy - The protagonist is suddenly a wealthy person with a "suburban ho" aka a new girlfriend by his side and everything is hunky dory. Essentially the protagonist gave up their career to get a real job and live a boring suburban lifestyle.
The subtext of all of this is that Sparks didn't give up their career and didn't live a financially secure boring Suburban Life. That's why the last song is so out of place, it's what they could have chosen to do but didn't