Davis, that's a great question. Thanks for asking it and for checking out the video - much appreciated. When describing a "slash" chord, I think of it in a couple ways. In this case, you can view it like a fraction and, thus, call it "D over F#." Or, you can recognize the chord is to the left and the bass note is to the right and call it a "D with an F# bass." To be honest, I've not heard it called the other way (i.e. F# over D). However, chords often have multiple names so if you think of that form as F# over D, then that would work for you. Thanks, again, for the excellent question. Have a great day.
