十年 / 明年今日 by 陳奕迅
This song by Eason Chan is in Ab.

These are the “cheat” chords I played…
Part 1a: Ab2 - Eb/G - Fm7 - Eb4 - Fm7
Part 1b: Db2 - Eb4 - Fm7
Part 1c: same as Part 1a
Part 1d: same as Part 1b
Part 2a: Ab2 - Eb - Db2 - Ab2
Part 2b: Bbm7 - Gb2 - C7 - Eb
Part 3a: Ab2 - Eb - Fm7 - Db2 - Dbdim
Part 3b: C7 - C7/E - Fm7 - Db2 - Eb4
Part 3c: same as Part 3a
Part 3d: same as Part 3d… end with Ab2



