Music and sound:

"Take Me Out to the Ballgame" Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/

"Free Crowd Cheering Sounds" by Gregor Quendel (www.gregorquendel.com), CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ (trimmed and looped)

"Nickajack Park, Mableton, GA - Baseball Game" by SoundHunter (radio aporee), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/ (excerpt)

"Take Me Out to the Ball Game" sung by Edward Meeker (Edison, 1908), public domain.

"Charge" by the US Air Force Heritage of America Band, public domain.

Additional public-domain and CC0 sounds by starlite (pdsounds.org), eguobyte and Wu Tsan-Cheng.

"baseball organ" by treblebooster (freesound.org), recorded at Wrigley Field, CC0 https://freesound.org/people/treblebooster/sounds/151373/

Freesound (CC BY): all Freesound clips trimmed, mixed to mono and loudness-normalized.

"awwboobooo" by edbles (freesound.org/s/112258), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"cyclonesbaseballgamegeneralcrowdnoisefaintannouncements" by edbles (freesound.org/s/112266), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"runrunrunawwwdisappointedclapping" by edbles (freesound.org/s/112280), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"twocharges" by edbles (freesound.org/s/112283), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"Fenway Park Sep 19 2010" by vflefevre (freesound.org/s/166220), CC BY 4.0 https://creativecommons.org/licenses/by/4.0/

"WALLA Ballpark Cheer William Tell Overture Organ" by Alyssa Galindo (AshFox) (freesound.org/s/191915), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"WALLA Ballpark Clapping Pattern" by Alyssa Galindo (AshFox) (freesound.org/s/191919), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"WALLA Ballpark Let's Go Organ" by Alyssa Galindo (AshFox) (freesound.org/s/191923), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"WALLA Ballpark Organ Take Me Out to the Ballgame" by Alyssa Galindo (AshFox) (freesound.org/s/191927), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"WALLA_Ballpark Organ Cheering Charge" by Alyssa Galindo (AshFox) (freesound.org/s/191928), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"WALLA Ballpark Organ Music Various" by Alyssa Galindo (AshFox) (freesound.org/s/191929), CC BY 3.0 https://creativecommons.org/licenses/by/3.0/

"BaseballHitAndCrowdCheer" by AmishRob (freesound.org/s/214989), CC BY 4.0 https://creativecommons.org/licenses/by/4.0/

"Hitting baseball w. wooden bat" by CGEffex (freesound.org/s/93136), CC BY 4.0 https://creativecommons.org/licenses/by/4.0/

Freesound (CC0, public domain):

"Glove Catch 1 FF014" by martinimeniscus (freesound.org/s/164499), CC0 https://creativecommons.org/publicdomain/zero/1.0/

"American Baseball The Umpire" by jcookvoice (freesound.org/s/625473), CC0 https://creativecommons.org/publicdomain/zero/1.0/

Organ riffs:

"Baseball cavalry sting short sustain.wav" by vckhaze (freesound.org/s/380695), CC0 https://creativecommons.org/publicdomain/zero/1.0/

"Baseball calvary sting long sustain.wav" by vckhaze (freesound.org/s/380696), CC0 https://creativecommons.org/publicdomain/zero/1.0/

"Hockey fanfare 2c.wav" by jobro (freesound.org/s/156512), licensed CC BY 3.0 http://creativecommons.org/licenses/by/3.0/ (excerpt)

"Hockey fanfare 2a.wav" by jobro (freesound.org/s/156514), licensed CC BY 3.0 http://creativecommons.org/licenses/by/3.0/ (excerpt)

"Hockey fanfare 1.wav" by jobro (freesound.org/s/156515), licensed CC BY 3.0 http://creativecommons.org/licenses/by/3.0/ (excerpt)

"Play Ball!.wav" by CGEffex (freesound.org/s/101137), licensed CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ (trimmed)

"WALLA Ballpark Let's Go Rangers Organ" by AshFox (freesound.org/s/191924), licensed CC BY 3.0 http://creativecommons.org/licenses/by/3.0/ (excerpt)

"WALLA Ballpark Let's Go Rangers Booing Organ" by AshFox (freesound.org/s/191925), licensed CC BY 3.0 http://creativecommons.org/licenses/by/3.0/ (excerpt)

"11comin_round_the_mountain.wav" by Pooleside (freesound.org/s/60687), licensed CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ (excerpt, filtered)

"Madison Square Garden New York Rangers Atmosphere 2010" by nyseagull (freesound.org/s/398258), CC0 https://creativecommons.org/publicdomain/zero/1.0/ (excerpts)

"Toccata und Fuge d-moll BWV 565" (J. S. Bach) played by Norbert Schenk, Wikimedia Commons, licensed CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ (excerpts)

"Cool Intro" Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ (excerpt)