Is it possible with any type of electronic add on to get the effect of a bow on a double bass string with an electric bass? In other words, the note played is sustained at volume once it is played, until it is muted or the string is raised from the fret. I am a church bassist and we have a couple of items in our repertoire that scream for a "bow bass" effect. If such a device exists, we are not looking at having to "Sell The Farm" in order to purchase it. Thanks In Advance.