Definition of tilde in English:
1An accent (~) placed over Spanish n when pronounced ny (as in señor) or Portuguese a or o when nasalized (as in São Paulo), or over a vowel in phonetic transcription, indicating nasalization.
- A tilde over the vowel indicates a high broken tone, in which the voice starts slightly above the middle of the normal speaking voice range, drops and then rises abruptly.
- In modern Paraguayan orthography, the nasal vowels are represented with the nasal tilde (~) over the oral version of the vowel.
- The fact that the singer was Spanish and that the programme printed the song title with a tilde might have been a clue, anyway.