The term 'scale sequence' refers to a musical sequence of notes that follows a specific pattern. The crossword solutions for this term are SOLA (4 letters), LATI (4 letters), REMI (4 letters), DOREMI (6 letters), and SOLATI (6 letters). These words are all derived from the solfège system, which is a method of teaching music by assigning syllables to the notes of a scale. SOLA is derived from the syllable 'DO, ' LATI from 'la, ' REMI from 'RE, ' DOREMI from 'DO-RE-mi, ' and SOLATI from 'so-la-ti.'