| SEMITONE | In music, the distance in pitch between a note and its nearest neighbour on the piano keyboard (8) |
| INTERVAL | Meaning "space between ramparts", a break between acts of a play or sessions in cricket; or, the distance in pitch of notes (8) |
| POSTIT | It's for notes and it's back in pocket (4-2) |
| MOONSHOT | Rocket launch to our nearest neighbour |
| NOISOME | Number one? Two notes and it's disagreeable! |
| ALPHACENTAURI | Nearest neighbour moved each tarpaulin around |
| AUSTRALIA | Our nearest neighbour (9) |
| TENOROON | Old woodwind instrument intermediate in pitch between an oboe and bassoon, also known as a fagottino (8) |
| ENVELOPE | Paper wrapper for a letter; the canopy of a hot-air balloon; or, in music, the "shape" of a sound (8) |
| ALLIANCE | Everyone goes half the distance in league (8) |
| BREADTHS | The distances in swimming pools from one side to the other (8) |
| CREAMTEA | Stuff that includes a note and a fattening meal |
| FOREMAST | It's nearest the bow |
| TRIAD | In music, a chord consisting of a note and the third and fifth above it (5) |
| TREMOLO | In music, the rapid repetition of a single note produced by a back-and-forth movement of the bow on a string instrument (7) |
| BIND | A stem of the hop plant; a tie in music; the clay between layers of coal; or, a statutory constraint (4) |
| FLAT | In music, the sign which, when placed before a note, lowers it in pitch by a semitone (4) |
| MIDDLEC | The fourth C key from the left on a standard 88-key piano keyboard (6,1) |
| DOT | In music, the symbol placed after a note to increase its time value by a half |
| OCTAVE | A to A on a piano keyboard? (6) |