I kno most of you are familiar with some sort of guitars. Others are prefers acoustic while other are into electronic has they have a huge understanding about on how to play the guitar. But others do have some mf which is great to have as you have any guitar in you. Because this was the great tool to use to enhance the music or sounds to produce as you try to play the guitar. For more info, please check Google for further because am pretty sure that mostly professional out there are got to explained this already.