While I don't know the song she played on other two games, based on the combo alone, the song she played in BanG Dream! is Roku-chou Nen to Ichiya Monogatari (Six Trillion Years and Overnight Story) covered by Roselia, with Expert 29, highest in the game.
Here is the gameplay video of both Expert and Special (also 29) Full Combo.

pop'n music: "Koiuta Shippuu! Karuta Queen Iroha"
Taiko no tatsujin: "Yuugen no Ran"

VR-Man said:

While I don't know the song she played on other two games, based on the combo alone, the song she played in BanG Dream! is Roku-chou Nen to Ichiya Monogatari (Six Trillion Years and Overnight Story) covered by Roselia, with Expert 29, highest in the game.
Here is the gameplay video of both Expert and Special (also 29) Full Combo.

Damn son she did it w/ thumbs as well.

Brightlight said:

Taiko no tatsujin: "Yuugen no Ran"

Damn, even I haven't passed Yuugen No Ran at all...