When it came on the market in 1938, the 64 Chromonica was the first chromatic to boast a range of over four octaves. Thanks to the additional bottom octave, it took the tonal range of the harmonica into registers where it had never before been heard. It made classical pieces accessible and also enabled the eerie, deep-toned growl and full chords of amplified chromatic harp which became an integral part of the blues tradition. It defined 4 octave chromatics and has gone on to inspire generations of players in blues, soul, jazz and classical music. If you’re looking for a real workhorse 64 chromatic it’s still your best bet.