In western countries, the blues harmonica is most popular in the blues, bluegarss, folk, country and pop music. In Asian countries, the tremolo harmonica is the most popular one.

• 在西方音乐中，布鲁斯口琴(10孔)最为常见，常用来表现布鲁斯、蓝草、民俗、乡村、流行音乐；在亚洲国家，复音口琴最为流行，适合表现优美的旋律及流行音乐。