Harmonica Diagram - Classic Diatonic Blues Harp Illustration #3723173 (License: Personal Use)

This black-and-white vector-style illustration depicts a standard diatonic harmonica, featuring ten rectangular blow holes on the lower plate and a smooth top cover with rivets. The design emphasizes structural clarity-highlighting reed chambers, comb shape, and mounting screws-making it suitable for instructional materials. Its clean lines and lack of shading ensure legibility at any scale.

Used in music education websites, instrument buyer’s guides, Wikipedia articles, and beginner harmonica tutorials; matches user intent for visual identification, schematic reference, or printable learning aids.