I like I Believe In A Thing Called Love too. I have a platinum collection of them, I've listened to only a couple of songs...
As for The Smashing Pumpkins, I like odd tracks from the double album, Melon Collie and the Infinite Sadness and the other album Adore.
I'll listen to all my albums of The Doors and Pixies first, then move on to the rest. I'll see what I like and what's not worth keeping then/worth deleting.
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