industrial metal wall art This innovative, hexagonal shaped bottle has been designed for experimental super premium whiskey. These extra white flint glass bottles have been manufactured by Allied Glass. When played on a guitar, a collection of tones that combine to make a melody are called a chord. Chords can be produced by using a strumming or plucking method, and also the chords may be comprised of different notes played one string during a period. Chords may use two, three, or even more notes. One note can also be considered a chord.