Originally Posted by Cantankerous
does it rly have to be at least 3 notes?
i do this out of laziness:
instead of this:
The first isn't a 'real' chord but can have a chordal/ modal/ melodic relationship to the rest of the song - in that instance, you'd have the major tritone if the bass were playing a B (the seventh note of the scale of F) or the B string was fretted at 2, which is A, the third note necessary for a 5th chord (F5)
The second is not really a chord in and of itself either, as the F on the D string is an octave of the F on the E string (that is, there's two of the same note). This isn't a hard and fast rule, but a generally accepted convention of chord construction.