AEROPHON: |
| There are
wind instruments also theese nominated free aerophons (xiloaerophons and
buzzing instruments ) |

REED: |
| Metal or cane reed
generating sound. The reed can being: striking, if the vibration with the reed
producing sound making from the strike against another reed (double reeds) however
against a solid corp (simple reeds); free if they produced the sound vibrating alone (as
the accordion). |

BITONIC: |
| Method in which are disposed
reeds in some aerophons: the metal reeds are disposed in couples of differents sounds
alternatively playing, exploiting the double action inspirable and aspirable of the bellow,
for example in the diatonics accordions, or of the human respiration as in the mouth
organ. |

CASSOTTO: |
Also seying voice in "a
box", resonance box or "organtone". It's a montage system that permitted
to some lines of voices to playing inside of a box drawing at the bottom of
accordion, in such away the sound don't going out directly outside obbligatory resounding
in this box.
The montage with this type of accessory involved the doubling of the mechanic and
valves on every key. |

CONCERTINA: |
| Mechanics aerophon with
free reed, chromatic or bitonic system of esagonal shape. |

CHROMATIC: |
Accordion that utilized the
scale of 12 sound that follow one another for intervals of semitone.
Are defined "chromatics" all the accordions with 12 sounds, if also are asked
"chromatics" the buttons accordions with unitonic system. |

DU' BOTTE |
| Dialectal denomination of the
organetto at 2 basses |

SEMIDIATONIC: |
| Intermedial type between
diatonics and chromatics accordions. |

TRAFORO: |
Parte superiore che serve da
copertura delle valvole del canto, puņ essere costruito in alluminio, ottone, plastica,
legno e celluloide.
Elemento decorativo caratterizzante l'estetica dello strumento. |

UNITONICA: |
| Sistema opposto alla diatonica.
Le due ance montate su ogni piastrina sono accordate con la medesima intonazione. |
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