Is the sound from the phone—the notification sound that resembles "teetata"—considered music, and must the phone be disposed of because of it?

He replied that the questioner seems to suffer from excessive scrupulosity and meticulousness, and that the basic principle is permissibility unless its prohibition is confirmed with certainty. He added that doubt does not harm, especially since the duration of the sound is very short, and a small amount is overlooked and excused. It is not obligatory to get rid of the phone even if one is certain that the sound comes from musical instruments.