To dream of hearing a duet played, denotes a peaceful and even existence for lovers.

No quarrels, as is customary in this sort of thing.

Business people carry on a mild rivalry.

To musical people, this denotes competition and wrangling for superiority.

To hear a duet sung, is unpleasant tidings from the absent; but this will not last, as some new pleasure will displace the unpleasantness.