How to transfer Macbook pro iTunes music to Galaxy S5?

Ok so I just got Samsung Galaxy S5 and I would like to transfer my music from my macbook pro to my S5. I brought this software online Wondershare MoblieGo it sucks. I wasted my money on something I thought it would be worth using! I don't think I should buy an advertise software online that looks like they just want your money and don't care.

I also download Kies as well but I don't like it cause it doesn't put my music in order and my songs have artist picture albums on them and when I transfers the music to my phone the pictures are gone or it'll have another artist picture from an different artist picture.

Does anyone know how to transfer Macbook pro 2011(software is up to date) iTunes music to Samsung Galaxy S5?
Is there an easy method or some kind of software that is really good to use, worth it, and easy one?

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