I haven been hesitant to write about The Mountain Goats for a few reasons:
As alluded to on the Math & Music homepage, Spotify has a great way to approach this problem. For each song we can look at various qualities which can then be rolled up to an album level. Some dates had to be estimated. Some albums had release and re-release dates. I included some deluxe editions where I could. Some albums and EPs are missing (blame Spotify, not me). However, we have a pretty good sample:
Albums have gotten longer. More songs are in major keys. John always refrains from cursing. Also, songs have gotten longer. Sweden and Nothing for juice have nearly 20 songs in 45 minutes, where the current album only puts ~12 songs in that same space.
Many things are very hard to quantify in music, but Spotify does its best. They provide the additional detail by track:
*Spotify does have more, but this is where I will focus most my analysis. For more information on these metrics please see the Spotify page.
On the below graphs, each point is an album, with the horizontal position reflecting when the album was released.
This is a bit harder to read than normal (due to the number of albums), so let me provide the underlying data below. Full Force Galesburg hit a danceability low. Overall, the band is getting sadder but fluctuates a bit. They are getting less acoustic. There is a lot you can say here...
Let's look at it another way. Does anyone remember radar charts from Pokemon? Also called spider diagrams (which is a little more punk), they put the 8 characteristics of the album on one chart.
Please note I had to scale all the characteristics to put them on one chart. The lowest score for an album is set to 0 and the highest is 1. Everything else is linearly scaled in between.
So looking at everything:
Oh my... This is why I knew this would be hard. Each album is pretty different. You can see the frequency of albums has gone down. Given the increasing complexity in newer albums, this makes sense.
All Hail West Texas is an all time favorite. Comparing it to other albums, it is very loud, live, sad, and energetic - exactly what I want when I listen to The Mountain Goats. Beautiful Rat Sunset looks similar to that and is another favorite. Ghana, an album I am less familiar with, is also similar. Maybe that should be my next Mountain Goats fix...
I am going to leave it to the reader to analyze what they will from the graph above.
There is too much here to be concise. I love the Mountain Goats and hope this will fuel your love for them too!