Skip, I use MusicReader for Windows with my Windows tablet. It is my favorite PDF music reader of all I have looked at because it saves all my edits as part of the PDF file itself. That makes my music sheets (with my edits) transportable to other readers and means that if I go to something else in the future, all my edits will be there.

I talked by email with Marco Leone, the developer of MusicReader, recently about his progress toward an Android version of MusicReader. He said that his Android version is a few weeks away for beta testing. I expect to be involved in that testing.

BTW, I notice that the price of the Hannspree 13.3 inch tablet has increased quite a bit. I like that tablet, maybe a little more than the Sony Windows tablet, because it is much lighter and still gives an excellent display. But, it doesn't take much processing power or memory to do the simple job of displaying music charts. Just about anything that works will do an adequate job if that's all you want to do. So, if price is a dominant issue and if you don't want to surf the net or look at videos, one of the other Android units will probably do the job just fine.