There is only one accompanying sound in pitch.

Pitch refers to the exact pitch of the music, and the accompaniment refers to the pitch of the main note. In pitch, there is only one accompanying sound, which is the same pitch as the tonic. This accompanying sound is called a fifth or fifth note and is five notes away from the pitch of the tonic. In harmony, the accompanying sound can play a supporting and modifying role, making the music more harmonious and beautiful. In pitch, there is only one accompanying sound.