From the 1942 musical “Holiday Inn”.
Words and music by Irving Berlin.
The sheet music:
Accompaniment by James Pitt-Payne:
Lyrics
Sweetheart of mine
I’ve sent you a Valentine
Sweetheart of mine
It’s more than a Valentine
Chorus
Be careful, it’s my heart
It’s not my watch you’re holding, it’s my heart
It’s not the note I sent you
That you quickly burned
It’s not the book I lent you
That you never returned
Remember, it’s my heart
The heart with which so willingly I part
It’s your to take to keep or break
But please before you start
Be careful, it’s my heart
Sung here by Laurence Rubenstein: