At your risk.
1. Stationary charges create an electric field.
For example an electrically charged pen by rubbing it to wool, attracts small pieces of paper.
2. Moving charges create a magnetic field.
For example a direct current passing through a wire near a magnetic compass will deflect it.
3 Accelerating charges create an electromagnetic field
For example vibrating electrons inside the radio transmitter's antenna will radiate electromagnetic waves. When they reach the receiving antenna its electrons will vibrate in a similar way, so information is received.
When there is no music broadcast the electrons vibrate at the radio station's frequency. When music is playing the carrier wave is modulated in amplitude (AM for amplitude modulation) or in frequency (FM for frequency modulation) by the music signal.
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