| CYMBAL | Musical instrument consisting of a concave brass plate (6) |
| OGEE | What is the moulding of a double curve formed by the union of a concave and convex line used for arc |
| SPHEROMETER | Instrument for measuring the radius of the curvature of a concave or convex surface, originally used by opticians when making lenses (11) |
| ZITHER | Plucked musical instrument consisting of numerous strings stretched over a resonating box (6) |
| KAZOO | Musical instrument consisting of a tube with a strip of catgut that makes a buzzing sound when hummed into (5) |
| GLOCKENSPIEL | Musical instrument consisting of a set of tuned metal plates that are played with a pair of small hammers |
| TABLA | Indian musical instrument consisting of a pair of drums of variable pitch |
| MARACA | A percussion instrument consisting of a pair of hollow pieces of wood or bone (usually held between |
| TUBULAR | Musical instrument consisting of a set of tuned metal tubes hung from a frame (7,5) |
| BELLS | Musical instrument consisting of a set of tuned metal tubes hung from a frame (7,5) |
| TUBULARBELLS | Musical instrument consisting of a set of tuned metal tubes hung from a frame |
| GUIRO | Latin American musical instrument consisting of a serrated gourd scraped with a stick to produce a rasping sound (5) |
| HARP | Plucked musical instrument consisting of a frame supporting a series of parallel strings (4) |
| COVING | A concave curved surface between the wall and ceiling of a room (6) |
| DIPPEN | Instrument consisting of a handle with interchangeable nibs for calligraphy or drawing in ink (3,3) |
| ALIDED | Surveying instrument consisting of the upper movable part of a theodolite including the telescope an |
| ALIDAD | Surveying instrument consisting of the upper movable part of a theodolite including the telescope an |
| OBOE | A woodwind instrument consisting of a conical tube fitted with a mouthpiece having a double reed (4) |
| TAMBOURINE | Percussion instrument consisting of a single drumhead of skin stretched over a circular wooden frame hung with pairs of metal discs |
| DRUM | Musical percussion instrument consisting of a membrane stretched over a shell (4) |
