| Answer | Crossword Clue |
|---|---|
| OCTAVES | Twelve-half-step intervals |
| temperaments | The adjustment of intervals in tuning a piano or other musical instrument so as to fit the scale for use in different keys; in equal temperament, the octave consists of twelve equal semitones |
| ladder | a structure for climbing up or down that consists essentially of two long sidepieces joined at intervals by crosspieces on which one may step |
| ALATEEN | Twelve-step program for children of drinkers |
