Do you think that the 8 string harp is God's favorite musical instrument and evil spirit's least favorite?

My dad says that it is b/c most of the psalms are for harps and also King Saul's demon was made to go away by David's harp playing and so I am wondering why more churches don't play harps. Any info on why this is would be really neat b/c I don't know how to play harp but if it helps answers my prayers maybe I should learn. thank you