Classification within 9205 turns on the sound-production mechanism, not the body material. Saxophones produce sound through a reed vibrating against a mouthpiece, placing them in the woodwind family under 920590 alongside clarinets and oboes, even though the body is made of brass. Brass-wind instruments (920510) are those where the player's lips vibrating against a cup mouthpiece generate the sound.

Yes — free-reed instruments such as accordions, concertinas, and harmonicas fall under 920590 alongside woodwinds, because they are non-brass wind instruments. The subheading is broad and captures all wind instruments not made primarily of brass with a cup mouthpiece, so importers should not assume a separate classification exists for free-reed types.