Code review comment for lp:~vthompson/music-app/use-sheet-pattern

Awesome work :)

Assuming this isn't supposed to fix the Genre part of bug 1238834, it looks good to go.

Although it does highlight the issue of the toolbar not appearing above the sheet patterns.

I'm hoping that this branch will assist with resolving the Artist tab part of bug 1239106 (look at the last two comments for reproducible steps [#12, #13])