from our glossary:
Ringers that are recordings of actual music or sounds.
While polyphonic ringtones can only simulate music by combining preset sounds of instruments in a musical pattern, real-music ringers are the actual music. Unlike polyphonic ringtones, real-music ringers can contain vocals.
Real-Music ringers come in standard audio file formats such as MP3, AAC, WAV, and WMA.
See: Polyphonic Ringtones
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