You are free to make music or software with this soundbank and charge money for it, should you desire, but you must keep your derived versions of the bank libre and/or gratis under a reasonable license of any type that aims for freedom in general. This does not mean that there is no warranty, it just means you cannot force the authors to do your bidding, but you may and should but not must ask contributors who may or may not be an author to do it at their convenience alone.
The authors are not liable for your mistakes.
All credit goes to the parties in the user field, myself included. If you are a member of an organization that forbids the prefix license, this following license shall void it: All credit goes to any source material. Do whatever with this soundfont and make something great with this under these terms unless you are bound by some condition that precludes you from them, at which an exemption is hereby granted.