The crossword solutions for the term 'SCALE TONES' are TIS (3 letters), DOS (3 letters), LAS (3 letters), and RES (3 letters). These four words are all musical terms that refer to the notes of a scale. TIS stands for 'TONIC, ' which is the first note of a scale. DOS stands for 'DOMINANT, ' which is the fifth note of a scale. LAS stands for 'leading tone, ' which is the seventh note of a scale. Finally, RES stands for 'RESOLVE, ' which is the eighth note of a scale. Together, these four notes form the basis of a musical scale.