A musical instrument tuner includes a display screen. A user can select predetermined configurations such as for guitar, bass guitar, violin, cello, etc. Popular detuned settings for guitars, such as "drop-D," one half-step down, etc. can be provided as selectable presets with the display configuration...http://www.google.fr/patents/US6653543?utm_source=gb-gplus-shareBrevet US6653543 - Musical instrument tuner with configurable display
Musical instrument tuner with configurable display
