Diatonic Harmonica - Classic Blues & Folk Instrument Guide #3723175 (License: Personal Use)

This illustration shows a standard 10-hole diatonic harmonica with a wooden comb, brass or stainless steel cover plates, and reed chambers visible through the blow holes. The instrument is tuned to a specific key (e.g., C major) and features a compact, handheld design optimized for bending notes and expressive playing. Its simple construction makes it highly portable and accessible for beginners and professionals alike.

Used on music education pages, instrument retailer sites, and beginner guides; matches user intent to identify, learn about, or purchase a diatonic harmonica.