Music companies are entertainment companies so are still extremely relationship-oriented businesses - far beyond the way conventional businesses are (such as software companies, manufacturers, retailers, etc). To be a top exec at a music company does not necessarily depend on skill or acumen.

Music execs can fail horribly at one company and then effortlessly transition into another great exec job at a competing music company. It's a small world. The music industry has this idea that its very complex and difficult and needs years of experience - but its really not.

If your founder happened to know the right exec in an e-commerce department and was able to show a demo/trial you could have been in with a chance. Anything related to billing software always has a good chance because its easy to make a case how it is generating revenue from day one. That's a difficult thing to do.