In Musescore...

1) I entered chord symbols using CTRL+K (and TAB to move to the next bar) above a treble stave in the key of C major.

2) I then selected the entire score with CTRL+A.

3) Next I clicked on "Tools | Transpose" and changed key from C major to D major.


The chords transposed perfectly.


MY SONGS...
Audiophile BIAB 2025