0 (a woman with) a low adult female singing voice or (a boy with) the lowest boys' singing voice or (a man with) the highest adult male singing voice -- 女低音（歌手）；男童低音（歌手）
1 used to refer to a musical instrument that is of a size and range between soprano and tenor -- （樂器）中音的
Originally, he had used the standard four vocal soloists - soprano, alto, tenor, bass - but he recast the bass part for baritone, as magnificently sung here.
In the chorus's second half, though, the singer sinks back to her low alto, and the sovereign pedal returns.
In this harmonically very unpretentious movement the composer achieves genuine poetry through understatement and delicate sculpting, especially of the sinuous line for solo alto.
This is represented by bass, tenor and alto duets, respectively.
Then come a pair of two-bar interludes, respectively for two sopranos and two altos.
The alto part, however, reveals none of these symptoms.
Although only a bass line is given, there are blank staves with clefs for three upper voices, two soprano and one alto.
From this he went to chorales; first he added the basses to them himself, and they had to invent the alto and tenor.
