Q: why does my music not sync int my phone

Hi ALEJANDROXSUAREZ,

Thanks for visiting Apple Support Communities.

If music doesn't sync to your iPhone from iTunes, you may want to double check the sync settings mentioned in this article:

iOS: Syncing your data with iTunes

http://support.apple.com/kb/ht1386

If you're syncing using USB, you may find the troubleshooting steps in this article helpful:

iOS: Troubleshooting USB-related alerts when syncing

http://support.apple.com/kb/TS5254

All the best,

Jeremy