Original: Drum and bass ( commonly abbreviated to D&B , DnB , dnb , d' n ` b , drum n bass , drum & bass , dNb , deebee ) , is a type of electronic dance music which emerged in the mid 1990s .
Simplified: Drum and bass ( also d & b , DnB , dnb , d' n ` b , drum n bass , drum & bass , dNb ) is a form of electronic dance music .