Jews mark the beginning of our Sabbath by lighting candles 18 minutes before sunset on Friday afternoon. In Jerusalem, there is a tradition to light the candles earlier - 40 minutes before sunset. Jerusalem is also unique in that they signal to the residents when candlelighting time is by a siren.
Uri Lupuliansky, the mayor of Jerusalem, was hosting a family from Tiberias in his home, and was witness to a very difficult scene this past Friday afternoon. When the siren went off (the same siren that signals a rocket attack, G-d forbid) the little children started to cry hysterically. Here they thought that they were safe, and suddenly that scary siren went off. (Will the fears of little Jewish children make the international news? I doubt it)
This coming week they will play songs over the citywide public address system to signal the start of Shabbat.
Tel-Aviv is also a scene of "music instead of sirens" but in a slightly different way. There are tens of young couples from the north who should have been getting married in their hometowns now. A lot did not want to put off the weddings, so they are improvising and having the ceremonies in Tel-Aviv instead.
G-d willing, when the IDF finishes Hizballah off, we will only hear music and no more sirens.