最後のバイバイ。(オリジナル：りりあ。)(ピアノDUO)

最後のバイバイ。(オリジナル：りりあ。)(ピアノDUO) is a somber song by スイートピアノ・メロディーズ with a tempo of 82 BPM. It can also be used double-time at 164 BPM. The track runs 3 minutes and 51 seconds long with a E key and a major mode. It has low energy and is not very danceable with a time signature of 4 beats per bar .