You gotta get really good instrumentals appropriate to what you're studying, and then loop them for 80 minutes with fades in between so you can't tell where it begins and ends, and then just play the 80 minute loop on a loop. That's the only way I can listen to music while studying or concentrating on anything.
That being said... the most popular song I've ever "studied" this way to in my time is noneother than...........
wait for it.........
Between the instrumental and lyric version, it has played a grand total of 2771 times on my computer since roughly 2010/11 and I've never looped it because it was never quite "intentional" so much as it simply "fit the best".
Perfect for "figuring shit out".
But there are others. Plenty others.
EDIT:
Might as well just round-out the top 10 all time played list on my iTunes library (before I started 80min looping things, which aren't on this list because this is stuff I chose for specific things):
1... Sunny Came Home Instrumental ................ 2071 plays... Shawn Colvin
2... Underneath Your Clothes Instrumental ......1543 plays... Shakira
3... Truly, Madly, Deeply ...................................... 1076 plays... Savage Garden
4... Ninja Gaiden II Act 3 Part II.............................. 935 plays... (NES game)
5*.. Not Afraid Instrumental...................................... 892 plays... Eminem
6... Going Under Instrumental................................. 862 plays... Evanesence
7... Don't Bother......................................................... 773 plays... Shakira
8... Sunny Came Home........................................... 700 plays... Shawn Colvin
9*.. Tomorrow from Ali Soundtrack........................ 672 plays... Sauf Keita
10. Battletoads and Double Dragon level 4......... 661 plays... (SNES game)
*These have since been 80 min looped
The ones that work for study themes are 1, 4, 5 and.... maybe 6 and 10. Some, like 3 and 7, have been for possible video project preparation. 3 was scrapped, 7 was done.