https://www.apronus.com/music/flashpiano.htm
on the tab that 'single notes' click 'major chord'. then click on D, the black one before it, the black one after it and B.
Awesome, thank you Barty
well tbh i suspected that "chords" were involved and yes i knew that they are produced by hitting devious combinations of notes so yes ...if that made sense to you then you are lying about knowing nothing about music