由于感冒，他用更低的音调唱歌。

He was singing in a lower ___pitch because of his cold.

没有人能模仿她，因为她能到达的音符音调太高。

No one can imitate her because of the high ___pitch of the notes she can reach.

那位女高音的声音音调异常地高。

The soprano's voice has an exceptionally high ___pitch.