CSPC Battle: 1975 Monster Rock Albums

1975 Monster Rock Albums CSPC Results

Bohemian Rhapsody

So, after checking all figures, what’s the most successful album from 1975? Well, at this point we barely need to do the addition of all equivalent album sales!

In the following table, all categories display figures that way, e.g. in equivalent album sales. For example, A Night At The Opera singles released in physical format sold the equivalent of 2,4 million albums – 8 million singles with a 10 to 3 weighting.


This is it! Once everything is considered, it appears Queen classic album A Night At The Opera comes on top, barely edging out Pink Floyd set Wish You Were Here. Aerosmith album Toys In The Attic is also fairly strong, largely downgraded on most all-time sales lists.

This last table also fully validates our CSPC approach. In fact, the most revolutionary part is adding shares of ‘other releases’ into sales of the original album, which may seem debatable for some. If one checks carefully this last table, he will notice how the Streaming ranking of those albums (1/ Queen ; 2/ Aerosmith ; 3/ Pink Floyd ; 4/ Bruce Springsteen ; 5/ Led Zeppelin) is very exactly the ranking of those albums in terms of additional generated sales through other releases. Coincidence? Obviously not. This just goes on to prove how much this method better reflects the real popularity of the original studio albums rather than their own sales alone.

The disappointment comes from Led Zeppelin. Despite being the second best seller in the original album format, the album is nowhere near the others overall with less than half the CSPC sales of A Night At The Opera. Considering the album is well behind Led Zeppelin own albums II or IV, this result appears to be fairly natural, making much more sense than the raw data initially represented by album sales.

As usual, feel free to comment and / or ask a question!


Sources: IFPI, Spotify, Chartmasters.org.

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Very interesting article! Strong result from Queen topping Floyd!

One question. Did you include Run DMC’s 1986 cover version of Walk This Way in your Spotify analysis? I know it featured Steven Tyler and Joe Perry as guests on vocals/guitars, but one could argue it is an orphan track in the Aerosmith catalog. The cover does not appear on either Toys in the Attic (1975) or Greatest Hits (1980). It does appear on latter compilations like Essential Aerosmith, along with the original version of the song.

Regards, Thomas


Thanks! The only thing I’m not sure about, for future battles, is if there is any possible formula to wigtht the way some discographies are structured. You made that point several times about Pink Floyd not releasing a truly official compilation until 2001 (just like Metallica or AC/DC not releasing one ever), and therefore benefitting from more spread sales given that all their essential songs were split in various albums. That was opposed to what the likes of Michael Jackson or Queen did where you could own all the vital songs with 1-2 compilation. Basically, Queen and Michael Jackson are… Read more »


Spotify is a vital part of any sales work at the moment. I must admit I wasn’t sure when you first mentioned how it makes things easier in several aspects, I think I didn’t get it. But now I realize it is probably a purer way to calculate popularity and compare different acts, and in this case not just for how they structured their catalogue but also when acts come from different eras, were huge in different parts of the world, their discographies have a different size, etc. All that doesn’t matter much with Spotify and similar. Which is very… Read more »


Thank you, Guillaume!

I understand why it took so long, the most difficult part is, of course, checking the Spotify’s numbers and calculate the percentages. I wish it was easier to do that.

And course, proud that Queen won the battle, haha.