My papa has read the Bible many times and no doubt knows much more about Jehova God than me and is also in charge of a Kingdom Hall for JW's nearby my house. Answer your question?
Your papa sounds like a godly man that followed his heart to be doing what he is doing. As we mature we all develop different gifts and abilities and you will find that you have gifts completly different than your father. The way your father worships God, may end up a different way from you. You may even find that you can worship Jehovah God through your music! Do no harm to no one and Follow your heart. I'm sure your papa is very proud of you. I hope that never ever changes as you grow.
As you can see most of us here no longer follow the Watchtower's interpretations of what the Bible has to say. Some do not follow the Bible at all or believe it is inspired from God, and that is ok too. We all have the personal responsibility to decide for ourselves. Love~Kate "To Thine Own Self Be True"