Reminiscence is the title of several background songs in the Ace Attorney series.
Phoenix Wright arc
Reminiscence ~ True Evening of Grief
Plays only in Phoenix Wright: Ace Attorney when Phoenix Wright go back to Maya Fey to tell her that Marvin Grossberg refused her case. Plays again when Maya thinks she is useless after Manfred von Karma zaps her and Phoenix with a stun gun.
Reminiscence ~ Light and Shadow at the Film Studio
It plays in the second game after Phoenix deduces that the murder weapon is under the real perpetrator's wheelchair.
Reminiscence ~ The DL6 Incident
Plays several times in Turnabout Goodbyes and some other cases while characters in the games remember that case, 15 years ago.
Reminiscence ~ Classroom Trial
Plays in Reunion, and Turnabout when Phoenix insists that he defend Maya. Plays once more in 2-4 when discussing Adrian Andrews' suicide attempt with Edgeworth.
Reminiscence ~ The SL9 Incident
Reminiscence ~ The Fire Carves Scars
Reminiscence ~ True Pain
Plays in Turnabout Big Top to recollect an accident that happened at the Berry Big Circus, the same time Case 2-2 occurred.
Reminiscence ~ Steel Samurai's Ballad
Plays when Adrian Andrews tells Phoenix and Pearl about her late mentor, Celeste Inpax and her love life with Matt Engarde and Juan Corrida. This also plays if you get the bad ending if you present the wrong evidence in the final case.
This song also plays in 3-2 when Adrian apologizes for hiding the fact that she broke the Sacred Urn. For that reason, it is widely considered to be Adrian's theme having played in two different games, both of which she was present.
Reminiscence ~ What the Others Have Seen
Plays when Viola Cadaverini tells Phoenix and Maya about the car accident she had Furio Tigre four months prior to Case 3-3. Also plays in Case 3-5, when Larry show up after the trial, crying about how useless he feels.
Reminiscence ~ Shadow on the Bridge
Reminiscence ~ The Bitter Taste of Truth
Apollo Justice arc
Reminiscence ~ A Hurt Fox
Reminiscence ~ A Fate Smeared by Tricks and Gadgets
Plays whenever the tragic past of Troupe Gramarye is mentioned throughout the game. Particularly, the incident with Thalassa Gramarye and the reasons surrounding Magnifi Gramarye's death. Also plays in the bad ending, if you choose "Guilty."