Oneness; agreement; concord.

一致；调和；和谐。

Sameness of pitch.

【乐】高低相同；同调；同音。

The sounding at once of two tones an octave apart.

【乐】相隔八度音的和声。

The singing of the same series of tones by all the voices at once.

【乐】齐唱(与 harmony 有别)。