Falstaff (opera)
Mr Ford is walking with Dr Caius, Fenton and Falstaff’s two friends.  Fenton is a young man who is in love with Nannetta, but Ford does not want him to marry his daughter.  Bardolfo and Pistola have deserted Falstaff.  They tell Ford that Falstaff is in love with his wife.  He is cross, of course, and plans revenge.  The music of the four ladies and the music of the five men is sometimes heard separately, and sometimes it is combined.  Fenton and Nannetta stay behind to kiss and they sing a love duet.  When the men and ladies come back they each sing their own music again.  This is a famous ensemble: the way Verdi has combined the two songs is very clever.