This software is protected by the GPL, the GNU Public License Version 2, in order to avoid to be ousted from it but I am really sceptic regarding any interest from a commercial compagny. The ugly drumpattern source code is in the bin/ directory.
I put this documentation under the opencontent license. This means this document is given without any warranty. You can use it, redistribute it, modify it, by respecting the following conditions: You have to clearly specify the nature and the content of the modifications, their date and keep the opencontent license in case of redistribution. If you sell it, you sell the medium, not the content. This is a summary, read the license to get more details.