One of the main contents of Solfege is listening. Listening is listening to the performance and writing notes and other symbols on the score.
In the listening sound solfege, we use a sheet of paper on which musical staffs are printed, called music paper. In Solfege, while listening to the performance, you will enter clefs such as treble clefs and bass clef, time signatures such as 4/4 time signatures, notes, etc. on music paper. Ultimately, we will complete the score.
What you should be aware of is the note (note pitch), the number of beats (note length), and key changes. By converting the sounds you hear into music, the symbols on the music are connected to the actual sounds and phrases in your head.
In the basic solfege training, the teacher plays the melody of the solfege using a piano and listens to the sound by the procedure of matching the answers.
By listening to practice, you can develop the ability to listen to music and write it accurately. As for listening sounds, teaching materials for pitch training on CDs and apps are sold, so it is possible to practice along with the teaching materials.
If there is no absolute pitch, or if there is no original pitch (relative pitch), it is more effective to get professional support.