I definitely don't see myself as much of a singer, because my upbringing is really based around the guitar, learning chord progressions and that sort of thing. So the singing aspect of what I do has been a secondary adventure.
I can read a chord chart, but I couldn't read a note chart.
I found a favorite chord, which is B flat 7 - that's my favorite chord.
I learned to embrace my individuality, and if that meant writing a song on one chord over and over again, then that's what I do.