To be clear, you have data free music streaming, not free music streaming. The difference is you can listen to music via selected streaming apps without using your monthly data allowance rather than being able to access premium streaming services at no cost. That said, plenty of them offer a free version.
Google Play Music, iHeart Radio and Spotify and the music streaming apps included in the data free deal with Optus
____________________________________________________________________________________________________________________________ I do not represent Optus. The views, opinions and advice expressed in my posts are my own