数字低音

例句：

1. 1. The bass guitaris the lowest pitched instrument in aband.
   低音吉他是乐队中最低音的乐器。
2. 2. The bass line is the foundationof a song's rhythm.
   低音线是歌曲节奏的基础。
3. 3. The bass player playsthe lowest notes on the piano.
   低音演奏者在钢琴上演奏最低音。