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A melodeon or diatonic button accordion is a member of the free-reed aerophone family of musical instruments. It is a type of button accordion on which the melody-side keyboard contains one or more rows of buttons, with each row producing the notes of a single diatonic scale.
The diatonic button accordion is bisonoric, meaning when a button is pressed, the note sounded changes depending on whether the bellows are being expanded or contracted. [2] This is similar to the harmonica, where the note changes depending on whether the player is breathing in or out. [ 2 ]
Diatonic button accordion (German make, early 20th century) The term squeezebox (also squeeze box, squeeze-box) is a colloquial expression referring to any musical instrument of the general class of hand-held bellows-driven free reed aerophones such as the accordion and the concertina.
On the right side there are 25 buttons in two rows. Each button produces only one note either on pressing or drawing the bellows, hence khromkas are unique amongst diatonic accordions. Khromkas can be set with one to five voices (reeds) per note, but usual are of two or three, in total 25, 50, 75, 100 or 125 reeds. The right keyboard layout in ...
The tonic note and major chord of the key play on when the bellows are pushed, and the dominant note and major chord when pulled (for instance, C major and G major respectively in the key of C). [7] Visually, the Cajun accordion typically displays its treble flaps rather than obscuring them behind a grill, as is common with many other accordions.
96-button Stradella bass layout on an accordion. C is in the middle of the root note row. The Stradella Bass System (sometimes called [1] standard bass) is a buttonboard layout equipped on the bass side of many accordions, which uses columns of buttons arranged in a circle of fifths; this places the principal major chords of a key (I, IV and V) in three adjacent columns.
It had five or seven buttons on the right keyboard, and like in the most Western diatonic accordions it produced different sounds on pull and push. So Tula garmon had two full diatonic octaves (from C4 to C6). The left bass keyboard had two buttons. Tula garmon was a base for all the Russian diatonic bisonoric garmoshkas (Saratov, Kasimov etc.)
Performance featuring a trikiti with tambourine accompaniment. The trikiti [1] (standard Basque, pronounced ) trikitixa (dialectal Basque, pronounced ), or eskusoinu txiki ("little hand-sound", pronounced [es̺kus̺oɲu tʃiki])) is a two-row Basque diatonic button accordion with right-hand rows keyed a fifth apart and twelve unisonoric bass buttons.