的意思 lower manual

1. The lower manual on the organ controls the bass notes.
风琴上的下手键控制低音。

2. Make sure to adjust the volume on the lower manual to match the upper manual.
确保调整下手键的音量以匹配上手键。

3. The lower manual can be played with the left hand while the right hand plays the upper manual.
下手键可以由左手弹奏，而右手弹奏上手键。

4. It is important to practice playing both the upper and lower manuals separately before combining them.
在将上手键和下手键结合之前，重要的是分别练习两者的弹奏。

5. The lower manual provides a rich and full sound that complements the upper manual.
下手键提供了丰富而浑厚的声音，与上手键相得益彰。

6. Some organists prefer to play the lower manual with their feet using pedals.
有些风琴演奏家喜欢用脚踏板演奏下手键。