Links to video uploads are messy. Here's the actual list of credited music.

All music is originally composed by ZUN or a composer on behalf of Twilight Frontier. If no artist or doujin circle is specified, the track is the original version from the game or CD.

Mod Icon is by 草月野々乃. https://www.pixiv.net/en/artworks/18230956

Game/CD Abbreviations Used:
LLS - Touhou 4: Lotus Land Story
PCB - Touhou 7: Perfect Cherry Blossom
IaMP - Touhou 7.5: Immaterial and Missing Power
IN - Touhou 8: Imperishable Night
PoFV - Touhou 9: Phantasmagoria of Flower View
MoF - Touhou 10: Mountain of Faith
SA - Touhou 11: Subterranean Animism
UFO - Touhou 12: Undefined Fantastic Object
Soku - Touhou 12.3: Hisoutensoku
DS - Touhou 12.5: Double Spoiler
FW - Touhou 12.8: Fairy Wars
TD - Touhou 13: Ten Desires
HM - Touhou 13.5: Hopeless Masquerade
DDC - Touhou 14: Double Dealing Character
ULiL - Touhou 14.5: Urban Legend in Limbo
LoLK - Touhou 15: Legacy of Lunatic Kingdom
AoCF - Touhou 15.5: Antinomy of Common Flowers
HSiFS - Touhou 16: Hidden Star in Four Seasons
WBaWC - Touhou 17: Wily Beast and Weakest Creature
SFW - Touhou 17.5: Sunken Fossil World
UM - Touhou 18: Unconnected Marketeers
100BM - Touhou 18.5: 100th Black Market
UDoALG - Touhou 19: Unfinished Dream of All Living Ghost
GFC - Ghostly Field Club
UFMJ - Unknown Flower, Mesmerizing Journey
NtoJ - Neo-traditionalism of Japan
DLFR - Dr. Latency's Freak Report



Menu Music:
Soku Title Theme - Did You See That Shadow?
PCB Title Theme - Mystic Dream ~ Snow or Cherry Petall
IN Title Theme - Imperishable Night ~ Eastern Night
PoFV Title Theme - Flower Reflecting Mound ~ Higan Retour
MoF Title Theme - Sealed Gods
SA Title Theme - Awakening of the Earth Spirits
UFO Title Theme - A Shadow in the Blue Sky
TD Title Theme - Spirit of Avarice
DDC Title Theme - Mysterious Exorcism Rod
LoLK Title Theme - The Space Shrine Maiden Appears
HSiFS Title Theme - The Heaven Where Cherry Petals Dance Down
WBaWC Title Theme - Unspeaking Beast Spirits
UM Title Theme - A Rainbow-Crossed Gensokyo
UDoALG Title Theme - A Beast's Intelligence

Dawn Stinger: Soku Suwako Theme - Tomorrow Will Be Special, Yesterday Was Not
Dusk Stinger: MoF Stage 3 - The Gensokyo the Gods Loved (arrangement by: 彩音 ～xi-on～)

Autumn Day 1: TD Stage 3 - Let's Live in a Lovely Cemetery
Autumn Day 2: SWR Forest of Magic - Fragrant Plants
Autumn Dusk 1: TD Stage 1 - Night Sakura of Dead Spirits
Autumn Dusk 2: PCB Stage 2 - The Fantastic Legend of Tohno
Autumn Night 1: GFC Track #5 - Illusionary Night ~ Ghostly Eyes
Autumn Night 2: IN Stage 3 - Nostalgic Blood of the East ~ Old World
Autumn Fight: HM Koishi Theme - Hartmann's Youkai Girl
Autumn Boss: DDC Sekibanki Theme - Dullahan Under the Willows

Winter Day 1: HM Nitori Theme - Akutagawa Ryuunosuke's Kappa ~ Candid Friend
Winter Day 2: HM Miko Theme - Shoutoku Legend ~ True Administrator
Winter Dusk 1: PCB Stage 1 - Paradise ~ Deep Mountain
Winter Dusk 2: DLFR Track #2 - The Frozen Eternal Capital
Winter Night 1: TD Stage 5 - The Hall of Dreams' Great Mausoleum
Winter Night 2: HM Extra - The Lost Emotion (Arrangement)
Winter Fight: Soku Cirno Theme - Beloved Tomboyish Girl
Winter Boss: TD Seiga Theme - Old Yuanxian (arrangement by: dBu)

Spring Day 1: TD Stage 4 - Desire Drive (track mix by: ScarletFlameFlandre)
Spring Day 2: HM Marisa Theme - Magus Night
Spring Dusk 1: DS Photo Theme 4 - Bell of Avici ~ Infinite Nightmare
Spring Dusk 2: FW Stage 3 Boss - Great Fairy Wars ~ Fairy Wars
Spring Night 1: IN Stage 6 - Voyage 1969
Spring Night 2: IN Mokou Theme - Reach for the Moon, Immortal Smoke
Spring Fight: IN Reisen Theme - Lunatic Eyes ~ Invisible Full Moon (arrangement by: まぐなむお～ぱす (Magnum Opus))
Spring Boss: PCB Alice Theme - Doll Judgement (arrangement by: Demetori)
Frog Rain: 100BM Middle Stages - Black Markets Can Happen Anywhere, Anytime

Summer Day 1: MoF Stage 4 - Fall of Fall ~ Autumn Waterfall
Summer Day 2: DDC Raiko Theme - Primordial Beat ~ Pristine Beat (arrangement by: Williatico)
Summer Dusk 1: IN Kaguya Theme - Flight of the Bamboo Cutter ~ Lunatic Princess (arrangement by: 玖原イヅナ (Izuna Kuhara))
Summer Dusk 2: UFO Kogasa Theme - Beware the Umbrella Left There Forever
Summer Night 1: IN Stage 5 - Cinderella Cage ~ Kagome-Kagome (arrangement by: みょん (myon))
Summer Night 2: MoF Sanae Theme - Faith is for the Transcient People
Summer Fight: IaMP Hakurei Shrine (Feast Day) - Demystify Feast (arrangement by: みょん (myon))
Summer Boss: WBaWC Saki Theme - Prince Shoutoku's Pegasus ~ Dark Pegasus (arrangement by: EX Lazther)
Sandstorm: SFW Utsuho Theme - Solar Sect of Mystic Wisdom

Full Moon 1: NtoJ Track #1 - Green Sanatorium
Full Moon 2: DLFR Track #6 - Schrödinger's Bakeneko
Moonstone: MoF Hina Theme - Dark Side of Fate (arrangement by: オーライフジャパン (O-LIFE-JAPAN))
Shadow Creature Fight: TD Yuyuko Theme - Ghost Lead (track mix by: ScarletFlameFlandre)
Nightmare Werepig: DDC Kagerou Theme - Lonesome Werewolf

Cave 1: SA Stage 5 - Lullaby of a Deserted Hell (arrangement by: SOUND OCTA)
Cave 2: DDC Extra Stage - Thunderclouds of Magical Power
Cave 3: UM Stage 4 - The Abandoned Industrial Remains
Cave Fight: SA Rin Theme - Corpse Voyage ~ Be of Good Cheer! (arrangement by: NEUTRAL)
Cave Boss: SA Yamame Theme - The Sealed Away Youkai ~ Lost Place

Ruins/Atrium 1: LoLK Extra Stage - A World of Nightmares Never Seen Before
Ruins/Atrium 2: DDC Stage 3 - Bamboo Forest of the Full Moon
Ruins/Atrium 3: UM Extra Stage - The Great Fantastic Underground Railway Network
Ruins/Atrium Fight: WBaWC Mayumi Theme - Joutounin of Ceramics
Ancient Fuelweaver: UFO Nue Theme - Heian Alien (arrangement by: Tutti Sound)

Sailing Day 1: SWR Youkai Mountain - Ridiculous Game (arrangement by: Foxtail-Grass Studio)
Sailing Day 2: HM Pre-Battle - An Unpopular Location
Sailing Dusk 1: AoCF Kourindou - Mushroom Waltz
Sailing Dusk 2: MoF Stage 2 - The Road of the Apotropaic God ~ Dark Road (arrangement by: Sounds of Liberation)
Sailing Night 1: LoLK Stage 6 - The Sea Where One's Home Planet Reflects
Sailing Night 2: UFO Stage 4 - Interdimensional Voyage of a Ghostly Passenger Ship (arrangement by: Logical Emotion)
Sailing Fight: SFW Yuugi Theme - A Flower-Studded Sake Dish on Mt. Ooe
Sailing Boss: UFO Murasa Theme - Captain Murasa (arrangement by: 激戦魂 (Gekisen Soul))

Lunar Island Day 1: UFMJ Track #3 - Tomorrow Will Be Special, Yesterday Was Not
Lunar Island Day 2: UM Stage 3 - Perpetual Snow of Komakusa Blossoms
Lunar Island Dusk 1: LLS Stage 3 - Bad Apple!! (arrangement by: クロネコラウンジ (Kuroneko Lounge))
Lunar Island Dusk 2: PoFV Yuuka Theme - Gensokyo, Past and Present ~ Flower Land (arrangement by: クロネコラウンジ (Kuroneko Lounge))
Lunar Island Night 1: LLS Stage 4 - Alice Maestra (arrangement by: Floresta Prateada)
Lunar Island Night 2: NtoJ Track #9 - Gathering the Mysterious from All Around Japan
Lunar Island Fight: SWR Extra - Crimson in the Black Sea ~ Legendary fish (Arrangement)
Lunar Island Boss: LoLK Seiran Theme - The Rabbit Has Landed (arrangement by: オーライフジャパン (O-LIFE-JAPAN))
Moonstorm: Soku Extra - Unknown X ~ Unfound Adventure (Arrangement)
Celestial Champion Phase 1: Soku Final Boss - Unknown X ~ Unfound Adventure
Celestial Champion Phase 2: NtoJ Track #8 - Unknown X ~ Unfound Adventure
Celestial Champion Phase 3: ULiL Final Boss - Unknown X ~ Unfound Adventure

Lunar Rift Reanimated Bosses: UM Sannyo Theme - Smoking Dragon