"The Concealed Four Seasons - Touhou 16: Hidden Star in Four Seasons" is a high quality rip of "The Concealed Four Seasons" from Touhou 16: Hidden Star in Four Seasons.
Several other Touhou themes are played over the track:
|0:00 (and throughout)||"Shoutoku Legend ~ True Administrator" (subtle)||Touhou 13: Ten Desires|
|0:34||"Pure Furies ~ Whereabouts of the Heart"||Touhou 15: Legacy of Lunatic Kingdom|
|0:57||"Dichromatic Lotus Butterfly ~ Red and White"||Dolls in Pseudo Paradise|
|1:42||"Last Occultism ~ Esotericist of the Present World"||Touhou 14.5: Urban Legend in Limbo|
|1:54||"Eastern Judgement in the Sixtieth Year ~ Fate of Sixty Years"||Touhou 9: Phantasmagoria of Flower View|
|2:18||"A Maiden's Illusionary Funeral ~ Necro-Fantasy"||Touhou 7: Perfect Cherry Blossom|
- This rip was released on Cirno Day, since while this rip doesn't directly relate to Cirno or her theme, she is a playable character in Hidden Star in Four Seasons.