Blues Session Harmonic Minor Covers: Chrom Diatonic Bluesharp with Chrome Plated Covers in Extra Tuning Harmonic Minor. Where does one begin with this tuning? Well, one can play use it to emulate Beata Kossowska from Poland. Without it, any attempt to play like her in third position would probably result in a broken neck! Whilst it does not compromise the flair for the Blues, playing of the Tango or other South American sounds or even moving onto to Eastern European folk music becomes equally intuitive for those to whom this is an important consideration. The beauty of of is that it happens almost automatically.