+The Mouth Organ, commonly known as a [Harmonica](/wiki/harmonica), is a free-reed wind instrument played by directing air through its channels. Its distinctive, often soulful sound is produced by the player's breath, making it a staple in [Blues](/wiki/blues), folk, and country music.
+## See also
+- [Wind Instrument](/wiki/wind_instrument)
+- [Reed Instrument](/wiki/reed_instrument)
+- [Music](/wiki/music)
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