I agree with the Ancient Dragon's lateral thinking. Put your musical abilities to work in an IT environment. If you are intent on changing fields, school is always an option.

Apprentice work as suggested by jbennet is also "right on".

I would add to their comments this one: Know yourself. Is your interest in "computer language" or "security"? Or some other nebulous "it-related field"? What were you happy with when you were in the music industry. Were you a composer, a director, a musician? Find your "sweet spot" in music and see if it relates to anything in the IT field. If it does, pursue it. But understand that you will probably have to give up the music; seldom can anyone be happy with two masters.