| Answer | Crossword Clue |
|---|---|
| PLANETARYSYSTEM | Part of the harmony of the universe |
| SPACE | Part of the universe. |
| PLANETARYSYSTEM | Part of the universe |
| TENOR | Third part of four-part harmony |
| ALTO | Harmony part |
| TENOR | Harmony part |
| ALTO | Harmony part, perhaps |
| ALTO | Middle harmony part |
| ALTO | Harmony part, often |
| ALTO | Middle harmony choral part |
| ALTO | Four-part harmony part |
| ALTO | One in a four-part harmony |
| CHORALES | Bach pieces in four-part harmony |
| PEACETREATIES | They're written for two-part harmony |
| ALTO | Second-highest in four-part harmony |
