1 そして今日も世界は (Soshite Kyou mo Sekai wa...) (And Today the World is...)
2 Angel Heart
3 ﾊﾟﾊﾟと遊ぼう (Papa to Asobou) (Play with Papa)
4 そして今日も世界は(ｲﾝｽﾄｩﾙﾒﾝﾀﾙ) (And Today the World is... (Instrumental))
And, to quote the bottom of the post:
Track 3, though I cannot confirm, seems to be a duet sung by Fujiwara Keiji (Maes Hughes) and Yoshida Mayuri (Elisia).
Thanks to Sycia for posting that info there!
(Also, I hadn't seen this confirmed in the community yet, but it seems that the second track of the Winry Song File WILL be a duet between Winry and Sheska <3<)