Dietmar Walther founded the Wiesbaden Accordion Orchestra in 1950, which has borne his name since 1988. To this day, the orchestra's special interest lies in original contemporary literature. Names such as Wolfgang Jacobi (1894-1972), Norbert Linke (*1933), Curt Mahr (1907-1978), Gerhard Mohr (1901-1978) and Friedrich Zehm (1923-2007) are closely associated with the history of the orchestra. A total of 32 original works were premiered, which are now part of the repertoire of many accordion orchestras. Concerts at home and abroad, numerous successes at accordion orchestra competitions as well as regular recordings for radio and records, CD recordings and television broadcasts have made the Wiesbaden Accordion Orchestra famous. In 1955, the West German Accordion Championship was won in Essen. In 1967, the Wiesbaden Accordion Orchestra became the "German Master Orchestra" in Karlsruhe and in 1989 won the most important international competition, the International Accordion Festival Innsbruck (International World Music Festival). In 1995 the orchestra won again in Innsbruck. In 1996 they won 2nd prize at the national competition of the "German Orchestra Competition (DOW)" in Gera. In 2008, the accordion orchestra won first prize in the "Accordion Orchestra" category at the national DOW competition in Wuppertal.

Liane Weber has been artistic director of the Wiesbaden Accordion Orchestra since the beginning of 2009. The accordion orchestra currently consists of the "Concert Orchestra" under Liane Weber, the youth ensemble "Young Accordionists", the "Hobby Orchestra" led by Susanne Gnad and the "Ton-AKK.robaten" with young children under the direction of Kerstin Nacken.