Could've Been The Greatest

Verse 1 (low, almost spoken) 🎵 Didn't wan-na put your name in a song
(G – G – A – G – E)
Didn't wan-na prove that you stayed this long
(G – G – A – G – E)
Thought if I got quiet, it'd disappear
(G – A – B – A – G)
Funny how you're gone but you're still right here
(G – A – B – A – E) 🎵
Keep it soft and close to the microphone.
Pre-Chorus (slightly higher) 🎵 Same music... (A)
Same movies... (A)
Same places... (B)
Same nights... (B)
But that's where the similarities die
(B – D – D – B – A) 🎵
Chorus (this is where you open up)
🎵 I don't re-late to yooou
(B – D – E – D)
Not the way I used toooo
(B – D – E – D)
'Cause I'd never treat me
(B – D – E)
The way you treated me
(E – D – B)
You could've been the greaaatest
(D – E – G – E)
That's the part that gets me
(E – D – B)
You had everything to be somebody good
(B – D – E – D – B)
Then you threw it away so ea-si-ly
(E – G – E – D – B) 🎵
That little jump on "greatest" is where the emotion hits.
Bridge (very Billie-inspired delivery, almost a whisper)
🎵 And no... this isn't missing you
(G – A – G)
(pause)
It's missing who I thought you were
(G – B – A – G)
(pause)
Turns out those aren't the same thing
(B – D – B – A – G) 🎵
For the instrumental:
Slow tempo (around 78–88 BPM)
Soft piano or muted synth
Deep bass entering during the chorus
Lots of silence between phrases
Layer a quiet harmony underneath the final chorus
A line that feels especially strong for your theme is:
🎵 "We liked all the same things / but I'd never treat me like you did." 🎵

Billie Eilish style

Alternative pop