Mon (emblem) are not recognized by law. One of the best known examples of a "mon" serving as a corporate logo is that of Mitsubishi, a name meaning "three lozenges" (occasionally translated as "three buffalo nuts"), which are represented as rhombuses. Another example of corporate use is the logo for the famous soy sauce maker Kikkoman, which uses the family "mon" of the founder, and finally, the logo of music instrument/equipment and motorcycle builder Yamaha, which shows three tuning forks interlocked into the shape of a capital "Y" in reference to both their name and the origin of the company. Japanese mon
Drop D tuning three open bass strings form a D5 power chord. Other fifth chords are made when barred with the index finger of the fretting hand shifted up the fretboard. Drop D tuning is frequently used in heavy metal and its various subgenres, as guitarists in these styles often need fast transitions between power chords. Drop D is also used in metal because it adds two lower semitones to the bass range of the rhythm guitar, which adds two more low-range power chords (Eb and D) and enables a "heavier", deeper sound. The tuning has also been used in many other styles