For more information, see here, from which it appears that Thimo Strobel is an authorized person connected with this recording, which was made in Bad Saulgau, Germany on Sunday, 28 October 2007. It is not clear who User:Maasty is, and similar uploads from this user have been deleted (see here), but this user does appear to be legitimate (see here), and other music uploaded by this user continues in use on the English Wikipedia.

The copyright holder of this work allows anyone to use it for any purpose including unrestricted redistribution, commercial use, and modification. Please check the source to verify that this is correct. In particular, note that publication on the Internet, like publication by any other means, does not in itself imply permission to redistribute. Files without valid permission should be tagged with {{subst:npd}}. Usage notes: If the work requires attribution, use {{Attribution}} instead. If this is your own work, please use {{Cc-zero}} instead. Copyrighted free useCopyrighted free usefalsefalse