It is so sad that I have no idea any of the musical instrument. I don't know how to play any of them nor knows about the tech 21 vt bass. I am funny really. I have no idea any of these things. I mean about musical instrument even the simple one. That is why I am hoping that one of my children would have interest in playing musical instrument. If one of them shows sign about it I will buy any instrument they want as long as I can afford it. We are five in my family, but no one play musical instrument so I hope one of my children will someday.