Sync sync and sync

[pdxdjazz]

1.I would like this feature:
It will be good if it was possible to create an acount and save our song
When open the app in iphone, tab, android, other phone (in my case i have many device with ireal pro)
Everything is synchronized

2. I wanted sub category song
For example
The music: x
is on my personal playlist A and in my rock playlist also

You can already include any song in your library in any of of your playlists.
)BOB