| LC control no. | sh 85063330 |
|---|---|
| LC classification | ML553 History |
| Topical heading | Hydraulic organ |
| Variant(s) | Hydraulis Hydraulos Hydraulus Water organ |
| See also | Organ (Musical instrument) |
| Found in | New Grove dict. mus. instr.: Hydraulus (The ancient pneumatic organ, in which water was used to control the wind pressure) |
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