Action
Most diatonic button accordions have a "single-action" (or "bisonoric") keyboard, meaning that each button produces two notes: one when the bellows are pressed or pushed (closed) and another when the bellows are drawn or pulled (opened). In this respect, these instruments operate like a harmonica.
(In contrast, most other types of accordion, for example piano accordions and chromatic button accordions, are “double-action” – or “unisonoric” – because each key produces a single note regardless of bellows direction.)
Other single-action or bisonoric members of the free-reed family include the German concertina, the Anglo-German (or “Anglo”) concertina, the bandonion, and the Chemnitzer concertina (see concertina).
There are varieties of diatonic button accordion that are double-action, such as the garmon.
Read more about this topic: Diatonic Button Accordion
Famous quotes containing the word action:
“We are oft to blame in this,
‘Tis too much proved, that with devotion’s visage
And pious action we do sugar o’er
The devil himself.”
—William Shakespeare (1564–1616)
“Let the will embrace the highest ideals freely and with infinite strength, but let action first take hold of what lies closest.”
—Franz Grillparzer (1791–1872)
“We have seen the city; it is the gibbous
Mirrored eye of an insect. All things happen
On its balcony and are resumed within,
But the action is the cold, syrupy flow
Of a pageant.”
—John Ashbery (b. 1927)