What's my best bet? To store offline ?
Sent from my Nexus 4 using Android Central Forums
you use music manager on PC to upload your music to google music, which you did with 10 songs.
now, anytime you play the music it will use data or wifi when using wifi.
there are two option to save the music offline which you uploaded to google music.
1. pinning- Its in the google music menu-->Choose on device music, select the albums you want to download and google music will download the song to your device.
next time you play the song it wont use data. make sure to download the song via wifi
2. Caching - its also an option in google music settings, Once you play a song it will save/cache it on your device so next time you play the same song it wont use data.
hope it helps