What STASIS says is exactly right !
As an addition there is a book by John Blacking , called "How Musical is Man?". In it he studies the Venda tibes people of South Africa , renowned for their intricate polyrythms. He put this very question to them and their reply was if it involves a human mind in the process of creation then it is music. No matter what it is created on.
In Irish folk music there are musicians who think that the guitar is not a folk instrument , but these people are lying to themselves , as the only true origional Irish instruments are the voice and the flute. ( The bodhran was a tool for sifting the wheat from the chaff in farming and only came into use in the 19th centuary.)
The bottom line is if you create sound you are a musician. This is part of being human , an the computer is only the latest instrument at our disposal.
And for those who don't feel like musicians , you are merely suffering from the stultification of your creative imagination by centuaries of western culture. Release yourself from these chains and seize your birthright . As you create you will enjoy , as you enjoy you will create. Be beautifull ... it is all within you.
Underground Funky Dance Label