Investigation (music theme)

"Investigation" (捜査) is a name given to several musical tracks in the Ace Attorney series. Each game has its own "Investigation" theme that plays when the main characters are ___timing of track_____. __style of pieces____. The key and time signatures of the songs vary (from ___, __, etc), but to date the song always builds on the _____ chord progressions.

Tracks
Phoenix Wright: Ace Attorney
 * "Investigation ~ Opening 2001" (捜査 ～序盤 2001)
 * "Investigation ~ Core 2001" (捜査 ～核心 2001)

Phoenix Wright: Ace Attorney: Justice For All
 * "Investigation ~ Opening 2002" (捜査　～序盤 2002)
 * "Investigation ~ Middle 2002" (捜査　～中盤 2002)
 * "Investigation ~ Core 2002" (捜査　～核心 2002)

Phoenix Wright: Ace Attorney: Trials and Tribulations
 * "Investigation ~ Opening 2004" (捜査 ～序盤 2004)
 * "Investigation ~ Middle 2004" (捜査 ～中盤 2004)

Apollo Justice: Ace Attorney
 * "Investigation ~ Opening 2007" (捜査 ～序盤 2007)
 * "Investigation ~ Core 2007" (捜査 ～核心 2007)

Ace Attorney Investigations: Miles Edgeworth
 * "Investigation ~ Opening 2009" (捜査 ～序盤 2009)
 * "Investigation ~ Middle 2009" (捜査 ～中盤 2009)
 * "Investigation ~ Core 2009" (捜査 ～核心 2009)

Gyakuten Kenji 2
 * "Investigation ~ Opening 2011" (捜査 ～序盤 2011)
 * "Investigation ~ Middle 2011" (捜査 ～中盤 2011)
 * "Investigation ~ Core 2011" (捜査 ～核心 2011)

Phoenix Wright: Ace Attorney: Dual Destinies
 * "Investigation ~ Opening 2013" (捜査 ～序盤 2013)
 * "Investigation ~ Consideration" (捜査 ～考察)
 * "Investigation ~ Core 2013" (捜査 ～核心 2013)