Originally Posted by babymusic
Originally Posted by MarioD
Right next to your circled D is a small box. Click on it then scroll down to Transpose -2 semitones.

I understand. Based on your suggestions, I have succeeded. To make sure I don't forget, I will repeat my thoughts.

The song itself is in the key of E, but I want to see it in the key of D. To ensure the generated music remains in E, I should first select E. Then, to display the notation in D, I select the -2 option next to E.

I never really understood the meaning here, but today I finally got it. Haha, thank you so much!

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Think like a bluegrass guitar player. We play a lot of what are called "fiddle tunes" where the fiddle player would normally play the song in either the key of A or the key of D as a large majority of traditional songs are played in those keys. Bluegrass guitar players would capo to the 2nd fret and play chord formations as if the song was originally written in the key of G or C. By setting BIAB to the -2 setting allows the chords on the screen to show up in the formations that guitar player would be playing.

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