euphonion
an early form of euphonium.
| 1862 Catal. Internat. Exhib., Brit. ii. No. 3377, An Euphonion or solo bass in B flat. |
euphonion
an early form of euphonium.
| 1862 Catal. Internat. Exhib., Brit. ii. No. 3377, An Euphonion or solo bass in B flat. |
Oxford English Dictionary