Polyphony and monophony in instruments harpejji and the Chapman stick). Multiphonics can be used with many regular wind instruments to produce two or more notes at once, although this is considered an extended technique. Explicitly polyphonic wind instruments are relatively rare, but do exist. The standard harmonica can easily produce several notes at once. Multichambered ocarinas are manufactured in a number of varieties, including double, triple, and quadruple ocarinas, which use multiple chambers to extend the ocarina's otherwise limited range, but also enable the musician to play more than one note simultaneously. Harmonic ocarinas are specifically designed for polyphony, and in these instruments the range
MTV Video Music Award for Quadruple Threat of the Year old format in 2008, though, this category did not come back. MTV Video Music Award for Quadruple Threat of the Year The MTV Video Music Award for Quadruple Threat of the Year was introduced in 2007, as the VMAs were revamped that year and a few new categories were introduced to the show. This award was peculiar for the MTV Video Music Awards, though, for (like Best Artist Website in 1999) it did not reward music nor music videos. Instead, the category awarded musical artists who excelled in at least three other areas beside their music career, such as acting,