It is generally accompanied by such instruments as the fiddle, accordion, concertina and percussion instruments. He also produces concertina and accordion apps. Live performances may feature an accordion and/or a concertina. The button accordion and the concertina were becoming common. The first instrument brought was a "Concertina" (a 120 button chromatic accordion). Such songs were often accompanied on mobile instruments of guitars, fiddles, concertina and harmonica. A singer and musician who plays the harmonica and the concertina. Wheatstone was also the first to patent a duet concertina, in 1844. They solved the issue by stringing concertina wire between foxholes. Folk instruments, such as the concertina, can be incorporated or emulated with synthesizers. American troops blockaded roads leading into the city with Humvees and concertina wire. Barriers of concertina wire blockaded access from the adjacent beaches. Sometimes adult soulers would use a musical instrument, such as a Concertina. The "English concertina" and the "Duet concertina" bear similarities in history and construction. One of the most famous was the Wheatstone concertina.