Here's the 21 songs from 2021 that appeared in the 2024 countdown:
GLOW

BLACKOUT

TURNSTILE

GLOW ON 2021 2:53
2024: 410 2023: 49 Average: 230
TYPHOONS

BOILERMAKER

ROYAL BLOOD

TYPHOONS 2021 3:29
2024: 1006 2023: 941 2022: 1245 2021: 121 Average: 828
DEATH

DEATH BY ROCK AND ROLL

THE PRETTY RECKLESS

DEATH BY ROCK AND ROLL 2021 3:54
2024: 1014 2023: 1473 2022: 1636 2021: 226 Average: 1087
OLD

FEEL THE FIRE

SHIHAD

OLD GODS 2021 4:07
2024: 801 2023: 1152 2022: 179 Average: 711
GLOW

FLY AGAIN

TURNSTILE

GLOW ON 2021 2:31
2024: 691 2023: 472 2022: 667 Average: 610
GLOW

HOLIDAY

TURNSTILE

GLOW ON 2021 2:52
2024: 1165 2023: 1611 2021: 1614 Average: 1463
TRUE

I GOT YOU

SHIHAD

TRUE COLOURS, NEW COLOURS – THE SONGS OF SPLIT ENZ 2021 3:52
2024: 879 2023: 809 2022: 1038 2021: 77 Average: 701
SINGLE

L-OVER

KORA

SINGLE ONLY 2021 3:59
2024: 972 2023: 675 2022: 783 2021: 325 Average: 689
LEMONADE

LEMONADE HAND GRENADE

MIDWAVE BREAKS

LEMONADE HAND GRENADE EP 2021 3:33
2024: 926 2023: 807 2022: 1856 2021: 510 Average: 1025
MEDICINE

MAKING A FIRE

FOO FIGHTERS

MEDICINE AT MIDNIGHT 2021 4:15
2024: 1969 2023: 1673 2022: 1315 Average: 1652
MAMA

MAMA, I'M COMING HOME

JOEL SHADBOLT

MAMA I'M COMING HOME 2021 2:41
2024: 841 2023: 603 2022: 1439 2021: 260 Average: 786
MEDICINE

NO SON OF MINE

FOO FIGHTERS

MEDICINE AT MIDNIGHT 2021 3:28
2024: 875 2023: 1280 2022: 732 2021: 591 Average: 870
DEATH

ONLY LOVE CAN SAVE ME NOW

THE PRETTY RECKLESS

DEATH BY ROCK AND ROLL 2021 5:12
2024: 1444 2021: 1580 Average: 1512
PEACH

PEACH

CHEVELLE

PEACH 2021 4:16
2024: 231 2023: 192 2022: 321 2021: 44 Average: 197
VOLUME

R.I.P (REST IN PIECES)

BLINDSPOTT

VOLUME 1 2021 3:57
2024: 211 2023: 309 2022: 204 2021: 60 Average: 196
SPACE

SPACE BOOGIE

RACING

SPACE BOOGIE 2021 3:57
2024: 1794 2023: 1723 2022: 1036 2021: 936 Average: 1372
HORIZONS/EAST

SUMMER SET FIRE TO THE RAIN

THRICE

HORIZONS/EAST 2021 4:22
2024: 1886 2023: 1633 2022: 1116 Average: 1545
WHEN

THE BANDIT

KINGS OF LEON

WHEN YOU SEE YOURSELF 2021 4:10
2024: 1070 2023: 1076 2022: 683 2021: 157 Average: 746
SENJUTSU

THE WRITING ON THE WALL

IRON MAIDEN

SENJUTSU 2021 6:13
2024: 608 2023: 1237 2022: 439 2021: 1621 Average: 976
TYPHOONS

TROUBLE'S COMING

ROYAL BLOOD

TYPHOONS 2021 3:48
2024: 1069 2023: 799 2022: 1284 2021: 351 2020: 1403 Average: 981
MEDICINE

WAITING ON A WAR

FOO FIGHTERS

MEDICINE AT MIDNIGHT 2021 4:13
2024: 975 2023: 624 2022: 850 2021: 129 Average: 644