backporting musescore to jessie

[Michael Tokarev <mjt@tls.msk.ru>]

Hello.

I'd like to have current 2.x musescore in jessie,
since version 2 has very large amount of improvements
compared with version 1 which is currently in jessie.

I backported it locally, it is more or less trivial,
and the result works well so far (I use it for over
2 months already).

So I'd love to upload it to bpo.

Are there any objections, maybe suggestions or hints?
Maybe multimedia team likes to maintain the backport
instead of some random person? :)

Thanks,

/mjt