How Every Instrument Ever Gets Sorted
In 1914, Erich von Hornbostel and Curt Sachs looked at the entire world's instruments — gongs, fiddles, conches, kazoos, the lot — and asked one question: what is actually vibrating to make the sound? Their answer split every instrument on Earth into four families. A fifth got bolted on decades later once electricity showed up. This is that system, laid out at maximum voltage.
01
Aerophones — the air
itself is the vibrating body. Flutes, horns, bagpipes, your own voice.
02
Chordophones — a
stretched string does the vibrating. Guitars, violins, pianos, harps.
03
Membranophones — a
stretched skin or head vibrates. Drums of every shape.
04
Idiophones — the
instrument's own body vibrates, no string or membrane needed. Bells,
cymbals, xylophones, maracas.
05
Electrophones — the
sound is generated or shaped electronically. The category the original
1914 system never saw coming.
Pick a family above and go down the rabbit hole. Every page cross-links to the others, because in real orchestras the families never stay in their lane either.