Nanchang Harmonica Training Course is located on the first floor of Zone 3, Building 5, Hudongjiayuan, Guoan Road, Qingshan Lake District, Nanchang City (next to Agricultural Bank). According to the purpose, harmonica can be roughly divided into two categories: solo harmonica and ensemble harmonica. The former mainly includes blues harmonica, chromatic harmonica and polyphonic harmonica (including stress harmonica and echo harmonica). The latter includes bass harmonica, chord harmonica, brass harmonica and so on. According to the pronunciation mode, it can be divided into single arrow pronunciation and multi-arrow pronunciation. Chromatic harmonica and blues harmonica belong to single arrow pronunciation, while polyphonic harmonica, chord harmonica and bass harmonica belong to the latter.