Controversial take : The best osts that you can listen for hours and hours and hours without feeling tired of OR even forgotting its there, are the OSTs from eroges.
Bc they are made for you that to listen for hours, compared to JRPG ones where you take 15min town.
If i give an explanation, it will just worsen the wound/pain, that is why i don't. So try to guess it yourself and/or look around and use your IQ/EQ.

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