Given this paragraph about Choro music style, what are the instruments usually used to play Choro ?
Usually, choro is played by a flute, guitar and cavaquinho but other instruments are commonly played as the mandolin, clarinet, saxophone, trumpet and trombone. Also, to back the melody, a 6-string guitar, a 7-string guitar and a pandeiro are present. Finally, the cavaquinho appears as a rhythm or melody instrument.