I’m a self-taught blues harp player from the pre-internet era, so I basically learnt by copying stuff from recordings. Something that got pointed out to me after I had been playing for 3-4 years was that I slant or angle the harp, in particular to play single notes.
I’m not over-familiar with many modern blues harp players, but this Canadian chap called Roly Platt appears to use the same technique as I do: Playing Harmonica on an Angle |Harp playing on a slant|holding harp on a angle|Roly Platt
Like him, this was just something I found myself doing when trying to figure out how to get clean single notes (and for bends also) it wasn’t a conscious method I deliberately chose. I seem to increase the angle of the slant as I play higher notes. For chords and train impressions, the angle is far less slanted (and might even be completely level).
Does anyone else use the slant technique? I would be interested to hear any views on this approach (positive or negative).