The term 'Type of Accordion' can be answered with the word 'Flutina', which is a seven-letter word. Flutina is a type of small accordion that was popular in the 19th century. It was invented in France and was used in many musical genres, including folk music, classical music, and popular music. The flutina has two sets of reeds, one set for the treble and one set for the bass. It is usually played with one hand on the keyboard and the other hand on the bellows.