I understand the concept of a blues scales and its structure. For example, the one I've been trying to write on sheet music is D Major blues. The scale contains the following: D E F F# A B Now the main issue is, am I supposed to write the key signature as D Major and then add accidentals from there? If not, why? I've tried searching online for sheet music based on the blues scale and it appears that all of them basically don't have key signatures. On the contrary- it seems easier if I just put the key signature and add the naturals or any other accidentals because it feels easier to read as a result... rather than having to put a bunch of accidentals without a key signature on it.
if it's possible, I would like a notated answer. If not, that is fine- I'll try my best to note them down