We always have music going. Sometimes just the radio is on, or the Bose is playing tunes from the iPod, or the Bluetooth speaker is connected to a teachers phone playing Pandora. The music pauses for circle times and reading times, but then gets going again when the quiet activity is over.
At school we listen to a plethora of genre's, we don't just listen to kids music. We like the kids to take part in what we listen too. They love to make requests, whether it be a specific song, an artist or just a genre. Today we listened to some Disney music, then switched over to country. The kids love singing along as they move about their tasks and sometimes they start dancing as the music moves them. I don't expect my preschoolers to sit, so when they break out dancing, I dance with them. I also like to commend their dance moves, and have them teach me new moves.
We connect through music in our classroom, not just as teachers with our students, but student to student connections are made. The singing gets us practicing our speech, the conversations before and after a song, get us practicing speech. The dance moves get us exercising and increasing our gross motor skills. We accomplish so much learning in our classroom by just turning on the music!