1) The choir director taught the members to sing using the tonic sol-fa method.

2) The students were required to memorize their music using tonic sol-fa notation.

3) The musician demonstrated how to sight-read a new piece using tonic sol-fa.

4) The music theory class practiced identifying intervals in tonic sol-fa.

5) The songbook was organized according to the tonic sol-fa system for easy reference.

6) The workshop focused on improving pitch accuracy through the use of tonic sol-fa.

7) The composer composed a piece of music based on the tonic sol-fa scale.

8) The a cappella group harmonized beautifully with the help of tonic sol-fa training.

9) The singer warmed up her voice by practicing scales in tonic sol-fa.

10) The music teacher encouraged her students to transcribe melodies into tonic sol-fa notation.