Hello,
In the last weeks I've been working on an editor and librarian for the Waldorf Blofeld synthesizer, since I wasn't satisfied enough with the alternatives.
It's still a work in progress (the librarian doesn't allow actual reordering yet, arpeggiator editor and mod matrix are still missing), but it already allows sound dumping from the Blofeld and parameter editing for almost everything. It also features a virtual keyboard to test sounds directly from the interface.

Here you can see a screenshot for the editor (that can be opened with a right click on a sound in the librarian window):

https://cloud.githubusercontent.com/assets/523596/23169061/a8af598c-f84a-11e6-88eb-71d16c906ee8.jpg

I created a set of custom widgets (since the standard ones depend too much on the system themeing, and they miss some important things I needed) and this should grant consistency for the interface.

If you are interested in testing it, you can find it here:

https://github.com/MaurizioB/Bigglesworth

It requires PyQt4 and pyalsa, and it's written in Python 2.7.

Any comment is appreciated..

Cheers!