A ringing noise

I lost my cell phone in May and gave up finding it after we moved in July. So now I have a new one and am loving it.

Unlike my old one, this one allows me to set different rings, depending on who calls. So far I have set about 4 different rings. Most of them are songs.

I have not received enough calls to recognize what songs play. So I find myself jumping up and looking for my phone a lot: like when our Little Einsteins Rocket toy plays its classical music, when the ballerina music box is turned on, when a cartoon in another room makes an odd beeping sound, and even sometimes when my phone actually rings!