
This is something that only a real mechanical strobe tuner is capable of, and a real advantage when tuning chords and octaves. The display will display multiple notes at the same time, and with practice you can discern which note is off when playing 2 notes together. Try to get the chords really smooth on the first 4 holes. Tuning the draw reeds a couple cents sharper like this works well for harder players. I often like to set the draw plate at +16 cents instead of 14. That sounds better to some ears if the harp will be used a lot for third position playing. You could even set the 5/9 draw to +14 cents, which would put the temperament in 19 limit JI. This would be like the current Marine Band tuning. If you don't want the 5/9 draw to sound flat for single notes, set the knob at zero and select the key to match the 5 draw note (D on the A harp, etc).


This is the tuning you would hear on anything LW or BW recorded, as Hohner used this tuning until approximately 1980 or thereabouts. After tuning all notes on the draw plate in the same manner, without touching the dial, the harp will be in 7 limit JI, like older Marine Bands, with an ultra-smooth chord if executed correctly. Now turn the dial to +14 cents, select the key to match the 2 draw (E on an A harp, etc). Leave it there, and tune every reed on the blow plate without touching the dial. After you calibrate the knob for 0 cents (A440), turn the cents dial to +12, and select the key that matches one blow on your harp (A for an A harp, etc).
