1) Certain scale sequence 2) Choral warmup system 3) Down the scale sequence 4) Musical scale 5) Musical syllables 6) Sing a scale 7) Sing in certain syllables 8) Sing tones of the scale 9) Solmisation 10) Solmization 11) Tonic solfa Found on https://www.crosswordclues.com/clue/solfa
1) Certain scale sequence 2) Choral warmup system 3) Down the scale sequence 4) Musical scale 5) Musical syllables 6) Sing a scale 7) Sing in certain syllables 8) Sing tones of the scale 9) Solmisation 10) Solmization 11) Tonic solfa