original: individual songs from some of the operettas have become standards , notably " vilja " from the merry widow and " you are my heart 's delight " -lrb- " dein ist mein ganzes herz " -rrb- from the land of smiles .
simplifications: single songs from some mini operas have become classics , mostly " vilja " from the merry widow and " you are my heart 's delight " -lrb- " dein ist mein ganzes herz " -rrb- from the land of smiles . individual songs from some of the operettas have become standards , notably " vilja " from the merry widow and " you are my heart 's delight " -lrb- " dein ist mein ganzes herz " -rrb- from the land of smiles . single songs from some of the operettas have become well known , such as " vilja " from the merry widow and " you are my heart 's delight -lrb- dein is mein ganzes herz -rrb- " from the land of smiles . certain songs from some of the operettas have become popular , especially " vilja " from the merry widow and " you are my heart 's delight " -lrb- " dein ist mein ganzes herz " -rrb- from the land of smiles . two standard songs from operettas are " vilja " from the merry widow and " you are my heart individual songs from some of the operettas have become standards , notably " vilja " from the merry widow and " you are my heart 's delight " -lrb- " dein ist mein ganzes herz " -rrb- from the land of smiles . vilja from the merry widow and " you are my heart 's delight " from the land of smiles are now standards . songs from some of the operettas have become standards , notably " vilja " from the merry widow and " you are my heart 's delight " -lrb- " dein ist mein ganzes herz " -rrb- from the land of smiles .